1, Check the driver, famous high power driver brand include Meanwell, Philips. Such as Meanwell HLG series, which is high-end series driver with 5years warranty. Besides, CLG series is a second choice with 3 years warranty. The led lamp life span highly depend on the led driver life. If someone tell you warranty 7 10 years, you should check the driver first. Few driver can have 7 to 10 years life span. Why some brand led lights such as GE OSRAM PHILIPS can give 10years warranty, because the big company have deeply and big data, they can figure out the average lighting time per day, usually a family and office lighting turn on 8hours one day, if a led light can reach 50,000hours. Then can offer 10years warranty.
If not a famous brand driver, how to check the quality, Actually we don’t suggest use the driver with small or no known brand, because driver’s scheme need very long time and many market test. Many country’s current fluctuation is different, the small brand have not so big market and power to test. Ok, let’s back, the core component of driver is IC, IC quality directly influence the driver quality, so you need check the IC brand. Besides, the transformer also very important components. If feel hard to check these components, the first thing need check is the driver’s power factor. A driver PF at least more than 0.9.
2, Check the LED light power, there are some company use 80W but sell as 100W or 150W , Just change a label. New entre to the market, some buyer don’t know it, Through the Watt hour meter, we can see the real power, that’s why we suggest do the inspection before shipment.
3, The led chip quality, a good chip should with long life span , low lighting decay ,high color rendering these can be know from the LM79 and LM80 report. You need ask the supplier offer the LM79 80 report. Besides, the led chip working temperature is a very important point, there are very few people know it, because this need very professional lab can test. and the chips packaging technology will influence the quality. Now in the market, there iron frame support packaging chip, copper frame packaging, and golden frame package. To ensure the LED chip life span, must adopt the golden frame packaging. Some factory want make a very low price product ,use the copper even iron frame packaged chip, which will make the light short life span. If use iron frame, the light will dead within 6 month, and light lumen very low. If you get a very cheap led light, you should consider this. The last point you need know, led chip also with power. if the led light 100W, use 100pcs chip 1w chip, which means the chip has been fully used, and the life span will be short. If we change a plan use 88pcs led chip, but each chip power highest to 3W,even we use it as 1.5W to 2W, It still has space. and when we use like this the lamp life span will last long, and lumen will be higher. Besides, use high power capacity chip to design the PCB can make it with a small current to reach the requirement power and lumen output, consider long term use , it can save lots of energy.
