The high reliability of the LED power supply of the panel light refers to the reliability of the electrical performance. The failure of each component may lead to the failure of the product. Therefore, in addition to the basic design of high-reliability products, it is necessary to be very clear about the derating of each component. Different components have different failure modes and different failure conditions. This part is very demanding.
It is especially important for the structure where the power supply is installed in the lamp. Because the luminous efficiency of the LED decreases with the increase of the LED temperature, the heat dissipation of the LED is very important. The efficiency of the power supply is high, its power loss is small, and the heat generated in the lamp is small, which reduces the temperature rise of the lamp. It is beneficial to delay the light decay of LED.
Generally, there are no mandatory indicators for electrical appliances below 70 watts. Although the power factor of a single electrical appliance with low power is low, it has little impact on the power grid, but everyone turns on the lights at night, and the same load is too concentrated, which will cause serious pollution to the power grid. For 30W~40W panel light LED power supply, it is said that in the near future, there may be certain index requirements for power factor.
Because the life of the LED power supply of the panel light directly drags down the life of the LED lighting fixture; or the low efficiency of the LED power supply of the panel light leads to the low efficiency conversion of the LED lighting fixture; or the instability of the output current and voltage affects the luminous quality, making The green and energy-saving advantages of LED lighting have been greatly discounted and have been questioned, thus affecting the popularity of the market.
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