Q: The advantages of high efficiency led driver
Ans:High efficiency can save the energy and cost for LED lighting system, High efficiency have the following advantages: 1.Save energy, long life-span for the led driver; 2.Good for the life-span of led chips; 3.Lower defective rate, lower repair cost
Q: Why does the outdoor led driver need silicone gel potted?
Ans:1.With silicone gel inside the led driver will have better waterproof function, the silicone against the water and moisture come into the driver; 2.The silicone gel good for heat dissipation compared epoxy resin and it can dissipate the heat from components. 3.Silicone gel has the low and high temperature resistance function, so outdoor led driver with silicone gel inside can be use in hot and cold environment.
Q: The outdoor LED lights have waterproof design. Can the LED driver without silicone gel potted?
Ans:No. The silicone gel potted driver not only have the waterproof led driver but also have the heat dissipation function which can reduce the heat of the components. In this way, the silicone gel potted led driver have longer life-span and more stable compared with open frame design.
Q: can the high quality traditional industrial power supply be used as an LED power source? (outdoor)
Ans:The tradition of high quality industrial power supply can't replace the LED driver power supply： 1.Traditional industrial power supply design without the lightning protection and waterproof design; 2.The industrial power supplies do not meet the heat dissipation design of the LEDS.
Q: 为何产品规格书表示的输入电压范围是90-305，标签是100-240或者100-277？
Ans:产品输入电压的标定，受产品内部零部件的认证电压范围所限，同时安规测试机构也会根据给定的工作电压范围，加严±10%来测试。
Q: Why led drivers could not use in parallel in series
Ans:When led drivers connect in series or parallel, the led lights may not working. So it could not be used as parallel or series.
Q: LED电源与LED灯具负载不匹配问题？
Ans:LED灯具厂家在选用LED电源时，有发现，点灯初始状态LED整灯功率小于额定值，LED灯具发热后，整灯功率输出逐渐达到额定值，其原因是LED灯珠串联电压大于电源的额定输出电压，电源处于限功率保护模式。 每颗LED灯珠的正向Vf值，在正常热机时的典型值为3V，而冷机时为3.2V，低温可能更高。所以，在匹配LED电源时，应根据项实际LED冷态的最高Vf值来选择合适的电源型号。
Q: What is the safety shell temperature? What is the quality assurance shell temperature?
Ans:The safety shell temperature refers to the maximum working shell temperature when under safety testing and regardless of the lifespan of the product,. The quality assurance shell temperature is to ensure that the product can be stable and reliable during the warranty period, and the maximum working temperature of the power supply is limited.