In 2012, “Ghent Festival of Lights”, the lighting designer and lighting enthusiasts that were from the world brought many wonderful works to the people , among which the most interesting thing is that 55000 led tube light were used to build up the multicolored church. The building is not only majestic tall, magnificent, but presented the delicate detail rendering and beautiful color combinations, memorable. Although the church took up 55,000 led lights, its power consumption per hour was only 20 kilowatts,which is both stunning and power art.

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How to prevent the occurrence of lightning? Having been studied，the several ways that were found are the most effective ways to guard against the damage by lightning for the LED road light:

1, set the lightning protection zone

Nowadays ，the LED road lights including the LED street light and LED tunnel light in addition to the current power supplies, some communication devices also must be set up to control the switch and the brightness of the LED street light and LED tunnel light，these devices and power are need to be resettled in the lightning protection zones, the protected areas is directly Shield by the Shell. Here’s electromagnetic is much weaker.

2, lightning equipotential bonding

To completely eliminate the damage of the potential difference that is caused by lightning， use the overvoltage protection to equipotential connect the power lines, signal lines, metal pipes and so, each inner protection zone at the interface must also be local equipotential connections, the each local equipotential connection must be connected each other, and finally connected with the main equipotential place.

3, combine the external and internal protection lightning

Now the exterior LED street light and the LED tunnel light are generally coated with the conductor material，itself is equivalent to a lightning rod, the deflectors and ground network must be installed, the systems constitute the external protection lightning system. The system can avoid the fires and personal security incidents caused by the LED street light and the LED tunnel light due to the direct lightning .the Internal lightning protection system refers to that the ground connection and the voltage protection is set inside the road light to protect the equipment. The system prevents lightning overvoltage and other forms of intrusion, resulting in destruction of the power, which is that the external lightning protection system can not be guaranteed. Both are mutually reinforcing and complementary. Internal protection lightning systems in many devices such as housing, cable in-out protection area, metal pipes, etc. must be connected to the external lightning protection system or set overvoltage protection, and the equipotential connection.

4, high-quality protective equipment – Lightning and overvoltage protection module module

SPD’ play the roles in connecting the systems protected to the equipotential protection in the shortest possible time (nanoseconds), so that each port equipment such potential. While the enormous lightning pulse energy generated by the thunder is released into the earth through the short route to reduce the potential difference between the interfaces on both side of the equipment, which play the role of protective equipment.

The power supply module of the LED street lamp and tunnel light must not only be designed in accordance with the above requirements, and must undergo a rigorous inspection procedures:

1, the devices with a constant voltage output function or with a constant current output capabilities, or the GB 19510.12 / IEC61347-2-13 safety standards should be used for both of them to test.

2, the control device with the function of only controlling the LED light dark, flashing, change color GB 19510.12 / IEC61347-2-11 safety standards shall are used to test.

3, if a control device with both the above two functions, the GB 19510.12 / IEC 61347-2-13 safety standard should be used to test.

Practice has proved that through scientific design and rigorous testing, not only to ensure that the LED street lighting system are not subject to lightning damage, but also to eliminate the interference of the common mode and differential mode the lightning make impact on the power.

Shenzhen Lead Opto-Technology Co. Ltd is a professional manufacturer of LED lighting, mainly produce LED High Bay Light, LED Flood Light, LED Panel,LED Ceiling Light etc with OEM&ODM service. As an ISO 9001:2000-certified factory, we 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.Browse www.lead-lighting.com/products/bid32-1.htm or more vivid characteristics and uses of the LED tunnel light.

Tools / materials Lamp Other Accessories

Methods / steps

1 First explain the industry jargon: T4.T5.T8.T10

T ” is on behalf of” Tube “, which indicates the tubular, the figures behind the T expresses the tube diameter. T8 is eight” T “, a” T “is 1/8 inch. Then every one inch equals 25.4 mm.” T “is 25.4 ÷ 8 = 3.175mm

T12 is the diameter of the tube (12/8) × 25.4 = 38.1 mm T10 tube diameter is (10/8) × 25.4 = 31.8mm T8 tube diameter is (8/8) × 25.4 = 25.4mm [T8 is just one inch diameter tube] Fixture: refers to the lamp with mounting bracket

LED Integration: refers to the LED tube light whose light source is LED chips, there is generally not irradiated dead for LED tube light.

Double tube bracket with hood lights: refers dual parallel connection, bracket lamp with shade

2 the tube light especially LED tube light is generally suitable for use in shopping malls, office buildings, offices, warehouses, workshop lighting, the smaller diameter is suitable for lighting Operations Console, the special showcase in shopping malls, T8.T10 is generally suitable for lighting in large area, the power and the number of choices can refer to the recommendations of the master electrician, LED integrated bracket, because there is no dead ends for light, no special conditions, higher brightness, there are many preferable occasions, twin-tube bracket with hood lights is more suitable for shopping malls, stores, small factory.

3 Now fluorescent tubes available in the market, the same kind of classification, in addition to brand name products, all other prices are basically similar, the general quality of the tube light is more than two years, there is three-year warranty for some of special brand, the aluminum lamp holder is generally preferable， it is easier to corrode for the iron, it is difficult to corrode for the aluminum truss, it is not easy to fade for long-term use, which does not affect the appearance, with particular attention, the mostly the dual tube are made of iron lanterns, when buy depends on workmanship, anti-corrosion treatment is in place, whether the ballast the tube light equip meets the standards.

Precautions Note that accessories such as ballasts, connectors Terms of warranty

Having Known how to choose a good LED tube light，then how to find a good LED manufacturers is also the key, which mainly rely on good reputation,the Lead lighting has been continuously improving Production and R & D team, strict applying qualified LED chips, drivers, housing, radiator to produce all kinds of LED flood light, LED tube light, LED tunnel light and other indoor and outdoor LED lighting, the high brightness SMD is used as the light source of the LED tube light and highly integrated and high brightness COB as the light source of the LED flood light, which fully guaranteed stability and soft light of the LED tube light and octahedron breadth and brightness irradiation range of the LED flood light, while the low voltage constant current driver convert the AC into DC so that improve energy efficiency 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 polluting the environment, that’s why the LED light is famous for energy-saving and environmental protection ，login 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.

The testing standard methods of the LED flood light.

1 inspect the Brightness use the illuminometer one meter away from the product to test whether the product illumination data the manufacturers provide is consistent with the supplier.

2 inspect the light failure use the illuminometer to regularly check whether the daily illuminance values is within the normal attenuation limits.

3 check the temperature take advantage of a thermometer to inspect 1 cm that is close to the LED integrated light source, whether the test temperature is in the range of 80 degrees, and then test the surface temperature of the LED flood light, whether at 60 degrees or less. We used to touching the surface of the products to make sure the thermal sensation，then the best way is that using the illuminometer to test temperature near the source. Because the surface stability does not mean that the product is good, maybe this product is very poor, because even the calories are turned out.

4.Make sure that whether the appearance of the surface is scratched, deformed, there is the fingerprints or not. The fingerprints can reflect that the factory management is strict or not and the whether the requirements on the quality of the LED flood light is rigorous.

5. the summary.

The Product is good or bad depend on what you require. Price is only part of the product, a good product it is not measured by the price, but with the value to be measured.

Lead lighting has been continuing to strengthen the use of certified raw materials such as LED chips, LED drivers, heat sinks, shell, etc., and improve R & D and production team, striving to adopt the best materials and technology to produce best quality LED flood light, LED tunnel light, LED tube light and other indoor and outdoor lighting, using highly integrated high-brightness COB as the light source of the LED Flood light and LED tunnel light and other outdoor lighting，adopting high brightness SMD LED as the light source of the LED tube light, the low-voltage constant current driver ensure the alternating current can be convert into direct current so that improve the energy use and reduces the stroboscopic effect stimulating the human eye, fully guarantee octahedron illuminated area of LED flood lights and bright light to adapt to outdoor open environment ，the soft and bright light of the LED tunnel light and LED tube light makes us safe driving in tunnels and enjoy work and study.As an ISO 9001:2000-certified factory,the lead lighting 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. visit www.ledclan.com to Learn more vivid and specific characteristics of the LED tube light or click www.lead-lighting.com for more detailed and professional features and uses of the LED lighting.

The LED flood light and LED Spotlights are often confused by us, there is generally no lens for the LED flood light, the light angle is relatively large, which is typically 120 °, the illuminated area of the LED floodlights is relatively large, but the irradiation distance is not far. There is generally a lens for the LED Spotlights, the angle the light shines out can be determined by the

size of the lens, the irradiation area of the LED spot light is generally not large, but the irradiation distance is far.

The component of the LED flood lights

1 glass + Reflector + LED integrated light source (cob) + led Power + die-cast aluminum housing = LED flood light

1, tempered glass.

Process: There are two types, one is physical tempering，the other chemical tempering.

Physical tempering is that the ordinary glass or float glass is produced by quenching pyrometallurgical process or cooling in the specified conditions and circumstance.

Chemical tempering is that the composition of surface of the ordinary glass or float glass is changed by ion exchange method to form a compressive stress laminated layer on the glass surface.

Discern good and bad: Check the flatness, no bubbles, inclusions, scratches, lanes and fog spots and other defects, such defects of the glass, the deformation will occur in use, reducing the transparency of glass, mechanical strength and thermal stability of the glass.

2, the Pan-mask

Identification method: no distortion, no spinning lines, pinhole, bright surface, the surface without obvious sand holes, better gloss plating, plating thickness should be uniform.

3, LED integrated light source

Discern good and bad: through a microscope to see whether the chip is from the desired manufacturers (Corey, Prius, wafer, etc large-size chips is currently hotter on the market.), the chip size is whether the chip required. There are Square chip, wafer, raw footage, confirm the chip is good and bad. according to the specifications the manufacturers producing LED Flood light tell you， glue, bracket, LED phosphor composition also determines the quality of the LED flood light, there is not individually listed.

4, LED power

Discern good and bad: First we need to refer to the data. Such as: buy a 50W LED floodlight, and what the vendors give you the product power is 56W or 46W, which is NG. Specific issues is based on the standards to measure on time of purchase. LED power efficiency and power factor conversion rate determine this supply is good or bad, so the better，the higher the value. the insulation protection is very important for the Non-isolated power，I heard that a lot of customers have said there was a feeling of the electric shock on the surface of some low-end brand LED Flood light, even more outrageous is that the leakage is more than 100 volts.

5, die-cast aluminum housing

Discern good and bad: the Shell decide that whether the heat dissipation of the product is good in future or the light decay is in the normal range. Now the manufacturer basically manufacturing the LED flood light purchase kit and then assemble, having never considered the product heat. Some manufacturers use the scrap in order to reduce the cost of the aluminum. Because there is no way to simply distinguish the good and bad of the aluminum for the customer. The best way that is to identify the stabilizing is test.

Lead lighting has been continuing to strengthen the use of certified raw materials such as LED chips, LED drivers, heat sinks, shell, etc., and improve R & D and production team, striving to adopt the best materials and technology to produce best quality LED flood light, LED tunnel light, LED tube light and other indoor and outdoor lighting, using highly integrated high-brightness COB as the light source of the LED Flood light and LED tunnel light and other outdoor lighting，adopting high brightness SMD LED as the light source of the LED tube light, the low-voltage constant current driver ensure the alternating current can be convert into direct current so that improve the energy use and reduces the stroboscopic effect stimulating the human eye, fully guarantee octahedron illuminated area of LED flood lights and bright light to adapt to outdoor open environment ，the soft and bright light of the LED tunnel light and LED tube light makes us safe driving in tunnels and enjoy work and study.As an ISO 9001:2000-certified factory,the lead lighting 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. visit www.ledclan.com to Learn more vivid and specific characteristics of the LED tube light or click www.lead-lighting.com for more detailed and professional features and uses of the LED lighting.