In real life, there is often a lot of inflammable and explosive environment, but in such circumstances, the LED flood lamps must be needed, and we all know that electric lighting generates the heat, or the arc or spark that is generated in the lamp also very prone to fire, because all around are flammable gases or dust, but at this time, why the led flood lamps is so named precisely because that it can be good to avoid this to achieve a good explosion-proof function.

Oznake: LED flood lamps, LED tube light, light source, electric lighting, stroboscopic effect, explosion-proof lighting, brightness, energy-saving

Excellent energy-saving LED lighting is generally favored by us, LED tube light and LED bulb because of instant light, simple and stylish outer appearance, good heat dissipation, etc. are used in indoor environments, of course, choosing a good LED lighting is indeed very important for us ordinary consumers, what the best choice is that the price is affordable but the quality is absolutely guaranteed, LED lighting is no exception

Oznake: LED bulb, led lights, LED street lights, LED flood lamp, general lighting, urban lighting, energy-saving, light, discomfort, chinese

Thanks to the Hong Kong Polytechnic University Electronic and Information Engineering, researchers recently developed high-performance LED driver , LED lights can be brighter and more energy-efficient than ever .

Oznake: LED tube light, PWM, Hong Kong, energy-saving, One Times Square, Worldwatch, Institute, Michael Tse, Geneva, Switzerland

Many enterprises procurement staff tend to be more concerned about the comparison price of the same type of LED road lights which include the LED street light and LED tunnel light, in fact, these comparisons is always lack of quality basis. So how to buy the finest LED road lights under the premise of maintaining a certain budget control? I will introduce you the next 9 choosing Notes

Oznake: led street light, LED tunnel light, energy-saving, lamp, ISO 9001:2000, outdoor lighting, leakage currents

Because which lighting 802s used to contacting is fluorescent lamps, particularly the 802s in China , the fluorescent lamp is everywhere from the classrooms and dorm at school to the home, and LED lighting is the third generation of lighting that relatively lately developed, it was just applied in the form of the indicator lights in 19602s , now with LED lighting technology improved, it had not been applied as the lighting that is based on the light-emitting diodes until the 1990s, in the early 2000s, as the LED technology further improve and people’s awareness of energy saving and environmental protection enhances and the countries have prohibited the use of incandescent bulbs around the world, LED lighting has won the unprecedented development, so for the 19802s, we are generally 20-year-old that is too late to understand what is the LED lighting, moreover we have already accustomed to using the fluorescent lamps, there is a new process for us to accept the LED lighting,

However , all of which does not prevent the promotion and popularization of LED lighting, because of the excellent energy saving features and soft light, colorful and other outstanding advantages,it has widely used in decorative lighting, scene lighting, backlighting, etc. lighting field, especially the LED flood light such as the portable 10W LED flood light and LED tube light are the most widely used as the representatives of the decorative lighting and the home lighting in daily life,the LED tube light enjoys a great popularity in our corridor, restaurants, shopping, leisure and entertainment, galleries, exhibition halls and other indoor environments everywhere, the LED flood light is mainly used in city squares, parks, stadiums, the facades of large commercial buildings and hotel, stage, waiting rooms, airports etc. where the higher brightness is needed to illuminate,

Oznake: LED flood light, LED tube light, light source, China, environmental protection, energy-saving, AC

The total investment is 2 billion yuan, the area of 102,000 square meters is covered,the output value will reach 300 million yuan in 2014 – Recently, LED green lighting (Northeast) industry base project & high-tech production project of the LED denotation chip has been started producing in Jilin Economic Development Zone. After the projects are all put into operation, the annual output value will be 10 billion yuan, taxes will be 1 billion yuan, which will become the Northeast’s largest LED industry base, making that the LED industry ranks among the advanced in JilinProvince.

LED is a new type of semiconductor lighting source, which is known as the energy saving, environmental protection, light control, and rich colors, etc., the energy-saving concept is currently is popular, the LED products have obtained rapid development. The leader of the development of the LED application product – Hong Kong Neo-Neon is one of the drafters of China’s LED national standards, according to the description of Yan Rongjie who is the Chairman of Jilin Neon Lighting Engineering Co., Ltd.: “Neo-Neon Holdings is currently one of the world’s largest collecting LED research and development, packaging, finished product in Hong Kong, the products include five series that is the LED application products, decorative lights, stage lights, fiber optic, and indoor and outdoor architectural lighting. The product of the LED green lighting (northeast) industrial Base & the production projects of the high-tech LED denotation chip, not only cover the North, Northeast, but also open up the northeast Asia market, we develop green LED lighting, because it is high-tech environmental project benefiting the country, which will not only endeavor to revitalize the northeast old industrial base, develop the Jilin economic after completed, even making efforts to integrate the Chinese national industry with the world level. “

Huang Nan who is the Deputy General Manager and factory director of the green LED lighting (Northeast) industry base manufacturing center introduced, the LED produces no ultraviolet, infrared, heat and radiation, which is called the best green energy-saving lamps. What the flagship product of the center is currently green LED lights: the lampshade has good light transmission and dust waterproof function, the whole surface has the self-cleaning function, the service life is 15 years, 5-year warranty, larger illumination area – four lamps can irradiate1000 square meters range. The particular humane is that because the asymmetrical design is used, the light mainly concentrates in the bicycle lane, and the lighting is very bright on the sidewalk, even we are able to read and write under the street light.

Of course , in addition to promoting the popularity of LED lighting projects in Jilin, the world is actively accelerating the popularization of LED lighting , especially in recent years, as the incandescent has exited the stage of history and energy-saving lamps, fluorescent lamps and other lighting have been consuming high energy and pollution the environment and endanger human health , LED lighting has gradually begun to replace the energy-saving lamps and fluorescent lamps.

Oznake: Neo-Neon Holdings, LED lighting, LED tube light, Hong Kong, northeast Asia, Jilin, LED flood light, energy-saving

LED light-emitting diode is the semiconductor light emitting technology. The LED the earliest developed only emit red light and was used as the indicator for electronic devices. With the development of technology, LED lights can currently emit lights of various colors, and is widely used in many types of industries, the main application markets include the traditional markets of the display and signal lamp, backlight market, street lamps, tunnel lights, automotive lighting market , outdoor landscape lighting and interior lighting market, specialty lighting market. LED as tunnel light source has its unique advantages.



(1) LED tunnel lights are of low power consumption, energy saving, compared with traditional high pressure sodium lamp, its energy consumption savings is over 20%.

(2) LED tunnel light is of long life, which is 50,000 h in the ideal state, while life span of the high-pressure sodium lamps and fluorescent tube is of only 10,000 ~ 30,000 h.

(3)the reliability of LED tunnel light is high, routine maintenance and repair costs is low, mean time between failures (MTBF) is up to 20,000 h, while the mean average time between failures (MTBF) of the high-pressure sodium lamps and fluorescent tubes, is less than 10 000 h.

(4) reduces the construction costs of the power distribution system (cables, transformers, power distribution boxes, trays, etc.), for long tunnels, the ratio of the share of the cost of the remote power supply situation, cables, distribution facilities is especially large, the energy-saving LED tunnel light can significantly reduce the investments of the cables and distribution equipment and other.

(5) LED Tunnel Light can achieve instant start, it is easy to adjust the brightness, with no glare, wide starting voltage , etc., can achieve a variety of energy-saving methods, such as intelligently adjust illumination according to the traffic on the roads, tunnels and so on.

(6) high-pressure sodium lamps, fluorescent lamps, lamp contain the mercury, lead, chemical pollutants, and LED tunnel light source is added less chemical polluting substances, which is a relatively green light.

With these advantages of the LED tunnel lights projecting the high pressure mercury and sodium lamps that is commonly used in the tunnel and people’s awareness of energy-saving and safety gradual strengthening, LED tunnel lights have begun to replace these conventional lamps,while a large number of companies engaging in the development and production LED lights have emerged , Shenzhen Lead lighting is such an enterprise, the customer satisfaction and outstanding energy saving effect is the biggest encouragement of the company , Lead lighting has always been committed to R & D and production of more environmentally friendly energy-saving LED street lights, LED tunnel lights, LED High Bay Light, LED Flood Light, LED Panel,LED Ceiling Light etc with OEM&ODM service. As an ISO 9001:2000-certified factory, it can meet the strict standards of CE, RoHS, FCC certificate, these strict producing standards guarantee our products distribute smoothly both in domestic and international markets.Just browse http://www.lead-lighting.com/products/bid32-1.htm for the comprehensive performance and features of the LED tunnel light or return the homepage for other vivid and awesome LED lights.

Resource from http://www.lighting-ledlight.com/index.php/whats-the-features-of-the-led-tunnel-light-by-comparison-of-other-lamps/

Oznake: LED tunnel light, high pressure sodium lamp, RoHS, MTBF, ISO 9001:2000, LED flood light, energy-saving, light source, OEM

Recently the U.S. market has discussed about the LED Lights, LED lighting systems around a few key points of the new purchasing,of which there are two keys, some lamps currently finally can already reach 85% of energy-saving benefits of the system, followed by some of the LED’s durable life that has been improved than before, reducing the chances of the United States pathway RMA, which makes the passage vendor acceptance more high.

The following five points are new optional points:

1, understand the efficiency of products the fixture manufacturers claim, the costs of before and after the installation of lighting and energy and maintained costs, as well as after-sales service.

2, assess the quality of the LED, compare the output efficiency of the light, and the products complying with the U.S. Green Hotels indicators tested, which is a very strict assessment tests, each energy-saving feature that needs to be noticed have been taken into consideration.

3, evaluate LED lamps, also consider using the evaluation criteria and information of comparison of the Energy Star, as well as the manufacturer’s test reports.

4, confirm and carefully observe the light, energy efficiency values the manufacturer offer , because there may be fraud.

5, verify the installation requirements of the LED lighting or lighting system, make sure the new lamp you purchase is in line with the U.S. National Electrical Code standards, the lamps that meet the needs of lighting installation are OK.

Nowadays,the LED flood light and LED tube light is most widely used as the representatives of the decorative lighting and the home lighting in daily life,the LED tube light enjoys a great popularity in our corridor, restaurants, shopping, leisure and entertainment, galleries, exhibition halls and other indoor environments everywhere, the LED flood light is mainly used in city squares, parks, stadiums, the facades of large commercial buildings and hotel, stage, waiting rooms, airports etc. where the higher brightness is needed to illuminate,meanwhile,there a large number of factory engaging in developing and producing the LED light,Lead Lighting is just one of them,which adopts high brightness SMD as the light source of the LED tube and highly integrated and high brightness COB as the light source of the LED flood light so that fully guaranteed stabe and soft light of the LED tube light and octahedron breadth and brightness irradiation range of the LED flood light, while low voltage constant current driver ensure the AC can be converted into the DC to improve energy efficiency of the LED tube light and LED flood light and reduce the waste heat energy and stroboscopic effect exciting the human eye, the most important is that the LED lighting without adding mercury and other heavy metals harmful to our body and pollution the environment, that’s why the LED light is Known as energy-saving and environmental protection ,login http://www.ledclan.com to learn more features and uses of the LED tube light and surf www.lead-lighting.com to know more awesome LED floodlights and other LED lighting.

Article from http://www.lighting-ledlight.com/index.php/whats-the-five-point-discussion-about-led-lamps-and-led-lighting-on-u-s-market/

Oznake: LED lamps, LED tube light, United States, National Electrical Code, light source, Energy Star, energy-saving, lighting

In Taiwan, with electricity coming up in October, of which Taiwan’s giant chain Tsann taking advantage announced that LED energy-saving area would be set up in Tsann chain stores in response to energy saving , challenging the sales of one million LED lights in a year

Oznake: LED flood light, LED lighting, kWh, Taiwan, LED tube light, energy-saving, light source, SMD, chain stores

The correct choice of LED driver IC is essential to reflect the characteristics of energy saving and long life of the LED lights In the field of LED lighting. The advantage of LED lighting can not be reflected without a good driver IC matched,.

LED lighting has been a leap in the recent developments, LED as the green and cleaning light is widely recognized. LED light source is known as long life, energy saving, easy application, low cost, and thus it will receive a flood of applications in home lighting, OSRAM optical semiconductor company surveyed that the global annual shipments of the home lighting lamp was about 50 billion in 2008,.

LED light source technology matures, the lumens per watt LED grow rapidly, prompting its diminishing prices. Taking the 1WLED light, for example, the price in the spring of 2008 is one-third of the price of the spring of 2006, the spring of 2009 has be reduced to one quarter of 2006.

The mass market and a steady growth in demand of the LED green lighting for several years will be super tsunami of the IC industry following VCD, DVD, mobile phones, MP3 on the consumer electronics market!

The superiority of high energy saving, long life and good for environmental protection of the LED lamps is being universally recognized.

1.LED High energy: DC drive, ultra-low power consumption (single tube is 0.03 ~ 1W) the electro-optical power conversion is close to 30%, the same lighting effects is 10% more than that of the traditional energy sources.

2.LED Long life: LED light source is called as longevity lamps. It is the solid cold light source, epoxy resin, there is nearly no loose parts in the light body, and there is no filament that is easy to burn, heat deposition, the fast light fades and other shortcomings, the service life is up to 50,000 hours, the life is 5 times longer than that of the conventional light sources.

3.LED is good for environmental protection: LED is a green light, the environmental benefits is better. The spectra contains no ultraviolet and infrared, low in calories and no flicker, no radiation, and recyclable waste, no pollution, no mercury elements, cold light source, safe touch, typical of the green lighting.

The work characteristics of the LED light

The VF used for lighting of the LED lighting source is of low voltages, which is normally 2.75 ~ 3.8V, IF is generally 15 ~ 1,400 mA. Therefore, the output voltage of the LED driver IC is VFxN or VFx1, IF keep the constant that is at 15 ~ 1,400 mA. There are two kinds of power that are the small power (IF is 15 ~ 20mA) and high power (IF is greater than 200mA) used for the LED light source. The Small power LED is mostly used to produce LED tube light, decorative lights, grille light. The big Power LED is used for household lighting, LED flood light, underwater lights, wall lights, street lamps, tunnel lights, car lights. Power of the LED light source is the device that is suitable for the low voltage, high current drive, the luminous intensity is determined by the current flowing through the LED. the LED light attenuation is caused by the General Assembly Current, the too small current will affect LED luminous intensity. Therefore, LED driver needs to provide constant current power to ensure the safety of high power LED, and to achieve the desired luminous intensity. In the field of LED lighting, the correct choice of LED driver IC is essential to reflect the characteristics of energy saving and long life of LED lights,. Not a good driver IC matched, LED lighting advantage can not be reflected.

Nowadays,the LED flood light and LED tube light is most widely used as the representatives of the decorative lighting and the home lighting in daily life,the LED tube light enjoys a great popularity in our corridor, restaurants, shopping, leisure and entertainment, galleries, exhibition halls and other indoor environments everywhere, the LED flood light is mainly used in city squares, parks, stadiums, the facades of large commercial buildings and hotel, stage, waiting rooms, airports etc. where the higher brightness is needed to illuminate,meanwhile,there a large number of factory engaging in developing and producing the LED light,Lead Lighting is just one of them,which adopts high brightness SMD as the light source of the LED tube and highly integrated and high brightness COB as the light source of the LED flood light so that fully guaranteed stabe and soft light of the LED tube light and octahedron breadth and brightness irradiation range of the LED flood light, while low voltage constant current driver ensure the AC can be converted into the DC to improve energy efficiency of the LED tube light and LED flood light and reduce the waste heat energy and stroboscopic effect exciting the human eye, the most important is that the LED lighting without adding mercury and other heavy metals harmful to our body and pollution the environment, that’s why the LED light is Known as energy-saving and environmental protection ,login http://www.ledclan.com to learn more features and uses of the LED tube light and surf www.lead-lighting.com to know more awesome LED floodlights and other LED lighting.

Rťsource from http://www.lighting-ledlight.com/index.php/whats-the-main-features-and-working-characteristics-of-the-led-light/

Oznake: LED lamps, led lights, IC, Small power, tube light, ma, luminous intensity, energy-saving, LED flood light, optical power

As people’s living standards improve,more and more families choose energy saving LED lamps, LED crystal lamps, LED flood light, LED energy-saving lamps and other LED lighting fixtures, but with the increased use of time we will inevitably encounter that the LED light is damaged, so today I share with you how to repair the damaged LED lamps, this experience is suitable for all LED lamps.

Tools / materials

Multimeter

Methods / steps

1.First, we must ensure that there is no problem with the circuit of the LED lamp in our own families, the main problem is that the switch has gone wrong , the switch is the focus of our detection.

2.Check the the power converter on the back of LED lights (that white box that is in the figure is the power converter), for this,the converter would be directly removed, and powered with a multimeter to measure the voltage or current, if the power converter is damaged,which can be directly purchased for the replacement, it is generally very cheap.

3.If there is no problem with the LED power converter,then we can cut the multimeter to the voltage output gear, and then place in the corresponding positive and negative point of the LED lamp to look up it will be lit or not. Replace it If it is can’t be lightened up.

4.Generally speaking, after the above three steps,60% of the LED lights problem can be solved, so our LED lights should be able to re-radiate the glory.

Precautions

Because LED lights are high-tech products and require a 220V power,we must pay attention to protection against electric shock during maintenance, and if you have doubts on the maintenance ,please check the reference material the qualify manufacturer and supplies offer.

Nowadays,the LED flood light and LED tube light is most widely used as the representatives of the decorative lighting and the home lighting in daily life,the LED tube light enjoys a great popularity in our corridor, restaurants, shopping, leisure and entertainment, galleries, exhibition halls and other indoor environments everywhere, the LED flood light is mainly used in city squares, parks, stadiums, the facades of large commercial buildings and hotel, stage, waiting rooms, airports etc. where the higher brightness is needed to illuminate,meanwhile,there a large number of factory engaging in developing and producing the LED light,Lead Lighting is just one of them,which adopts high brightness SMD as the light source of the LED tube and highly integrated and high brightness COB as the light source of the LED flood light so that fully guaranteed stabe and soft light of the LED tube light and octahedron breadth and brightness irradiation range of the LED flood light, while low voltage constant current driver ensure the AC can be converted into the DC to improve energy efficiency of the LED tube light and LED flood light and reduce the waste heat energy and stroboscopic effect exciting the human eye, the most important is that the LED lighting without adding mercury and other heavy metals harmful to our body and pollution the environment, that’s why the LED light is Known as energy-saving and environmental protection ,login http://www.ledclan.com to learn more features and uses of the LED tube light and surf www.lead-lighting.com to know more awesome LED floodlights and other LED lighting.

Article from http://www.lighting-ledlight.com/index.php/how-to-repair-the-led-light/

Oznake: LED lamps, LED tube light, LED flood light, Multimeter, power converter, light source, energy-saving, AC, dc

Because LED tube light is known as energy saving and high brightness, moreover the prices have been gradually reduced, so LED tube light enjoys a increasing popularity, but there are vastly different LED tube light on the market, which one is better in the end,then that let me share with you!

Tools / materials

As we all know, the 3528,3014 we often said refers to a package size of lamp beads, 35 refers to that the length of the long side of the lamp beads is 3.5mm and 28 refers to that the length of the short side is 2.8mm, and so on.

Types of lamp beads:

1.The first generation: straw hat lamp beads,which is the indicator we are used to see, the single brightness is low and the power is small,what the significant feature of the LED tube light produced is that the number of the lamp beads are over many,

2.The second generation: 3528 SMD As technology advances,the straw hat lamp beads is gradually replaced by 3528, power increases, single brightness can reach 7-8 lm,the lamp beads is also much more,resulting in the disadvantage that is the high failure rate.

3.Third Generation: 3014 SMD thanks to the emergence of the 3014,the price of the LED fluorescent decreases, the power of a single lamp beads is up to 0.1W, the single brightness is 12-13 lm that is nearly 50% higher than that of the original lamp beads.

4.Fourth Generation: 5630 SMD The advancement of the manufacturing technology born the 5630, single power is 0.5W and single brightness is 50-60lm, the emergence of 5630 rapidly industrialize the LED tube, the energy-saving effect is widely used in factories, hospitals and other long lighting.

5.Fifth Generation: 3020 SMD the emergence of the 5630 contribute to large-scale commercial use of the LED tube light, but the only flaw of the 5630 is so high brightness that single spacing is large, resulting in poor light efficiency, the emergence of 3020 make up for this flaw, single is 0.2W, brightness is 22-24 lm, making the brightness best combine with the light efficiency.

Precautions

The advantages of the LED tube:

High brightness, low power, energy-saving effect is obvious.

Start fast, flicker-free when started.

Semiconductor light source, no UV radiation.

Nowadays,the LED flood light and LED tube light is most widely used as the representatives of the decorative lighting and the home lighting in daily life,the LED tube light enjoys a great popularity in our corridor, restaurants, shopping, leisure and entertainment, galleries, exhibition halls and other indoor environments everywhere, the LED flood light is mainly used in city squares, parks, stadiums, the facades of large commercial buildings and hotel, stage, waiting rooms, airports etc. where the higher brightness is needed to illuminate,meanwhile,there a large number of factory engaging in developing and producing the LED light,Lead Lighting is just one of them,which adopts high brightness SMD as the light source of the LED tube and highly integrated and high brightness COB as the light source of the LED flood light so that fully guaranteed stabe and soft light of the LED tube light and octahedron breadth and brightness irradiation range of the LED flood light, while low voltage constant current driver ensure the AC can be converted into the DC to improve energy efficiency of the LED tube light and LED flood light and reduce the waste heat energy and stroboscopic effect exciting the human eye, the most important is that the LED lighting without adding mercury and other heavy metals harmful to our body and pollution the environment, that’s why the LED light is Known as energy-saving and environmental protection ,login http://www.ledclan.com to learn more features and uses of the LED tube light and surf www.lead-lighting.com to know more awesome LED floodlights and other LED lighting.

article from http://www.lighting-ledlight.com/index.php/which-led-lamp-bead-of-the-led-tube-light-is-better/

Oznake: LED tube light, UV radiation, LED flood light, energy-saving, light source, beads, brightness, stroboscopic effect, AC

When the power outage at home, do you sill look for the flashlight with stumbling gait? Recently, LED bulbs that is priced at $ 15 (about 91 yuan) and built-in the lithium battery has solved the problem. The bulb named Ascella continues to lit by an internal battery when the power outage to attain the emergency lights effect. Interestingly, Ascella can also be removed from its socket, used as a flashlight.

There is a mode selector switch on the Ascella bulb. Only after switching to emergency mode, Ascella continue to shine during a power outage. The life of the Ascella built-in battery is up to 3 hours. However, when the battery power, the brightness of the Ascella lamp will decline. After Ascella Refit is installed on the base, the internal battery can be filled within three to four hours. In addition, the official said the life of Ascella bulb is up to 18 years under the using frequencies that three hours a day.
Ascella bulb actually not so easy to use. In the actual test, we found that, Ascella brightness is equivalent to that of the 30W ordinary light bulbs, although the official called brightness is up to 150 lumens. In addition, charging, even if the Ascella is mounted on the base, it can not properly lit. I do not know if that was a design flaw.

The idea of the Ascella bulb is still very new. However, the brightness and functional defects makes this bulb is greatly discount the value in actual use.

However, it is clear that LED lights are applied more widely opposed to the traditional fluorescent lamps and energy-saving , with the innovations of the LED lighting technology and people’s increasing emphasis on environmental protection,the energy saving and environmental effects of the LED light is more and more obvious, and the LED light that is based on the Semiconductor is perfectly combine with majority of industries such as the clothing design, medicine, agriculture, aviation and many other fields to provide us with the unique experience and convenience.Nowadays,the LED flood light and LED tube light is most widely used as the representatives of the decorative lighting and the home lighting in daily life,the LED tube light enjoys a great popularity in our corridor, restaurants, shopping, leisure and entertainment, galleries, exhibition halls and other indoor environments everywhere, the LED flood light is mainly used in city squares, parks, stadiums, the facades of large commercial buildings and hotel, stage, waiting rooms, airports etc. where the higher brightness is needed to illuminate,meanwhile,there a large number of factory engaging in developing and producing the LED light,Lead Lighting is just one of them,which adopts high brightness SMD as the light source of the LED tube and highly integrated and high brightness COB as the light source of the LED flood light so that fully guaranteed stabe and soft light of the LED tube light and octahedron breadth and brightness irradiation range of the LED flood light, while low voltage constant current driver ensure the AC can be converted into the DC to improve energy efficiency of the LED tube light and LED flood light and reduce the waste heat energy and stroboscopic effect exciting the human eye, the most important is that the LED lighting without adding mercury and other heavy metals harmful to our body and pollution the environment, that’s why the LED light is Known as energy-saving and environmental protection ,login http://www.ledclan.com to learn more features and uses of the LED tube light and surf www.lead-lighting.com to know more awesome LED floodlights and other LED lighting.

Resource from http://www.lighting-ledlight.com/

Oznake: LED flood light, LED lighting, LED tube light, power outage, light source, lithium battery, bulb, brightness, energy-saving