1, see the overall "lamp power factor": Low power factor, indicating the use of the drive power, circuit design is not good, will greatly reduce the service life of lamps, low power factor, the use of no matter how good the lamp life of the lamp will not be long .
2, see the "lamp cooling conditions - materials, structure": LED lamp cooling is also very important, the same power factor lamps and lamp beads of the same quality, if the cooling conditions are not good, lamp beads work under high temperature, light failure will be very Large, lamp life will be reduced.
3, look at "lamp bead quality": lamp bead quality depends on the chip quality and packaging technology.
4, see the lamp drive power, power supply life relative to other parts of the lamp, the life expectancy is much shorter, the life of the lamp affect the overall life of the lamp, the theoretical life of the lamp beads 5-10 million hours, while the power supply Life expectancy of 0.2-3 million hours, power supply design and material selection will determine the power of life.
5, see light efficiency: the same light bead power, the higher the light efficiency, the higher the brightness, the same lighting brightness, power consumption, the smaller the more energy-efficient.
6, look at the power efficiency, the higher the power efficiency, the better, the higher, indicating that the smaller the power of the power itself, the greater the output power.
7, is to see whether the safety standards? China's LED lighting safety standards have been introduced, please select the LED lighting according to national safety standards.
8, is to see if the work is fine.
A good quality LED lamps, in addition to the above mentioned several major aspects, but also according to different environments, have different technical requirements, such as moisture, dust, magnetism, lightning and so on.