Led lamp power supply life problem
The power supply is built-in, and the heat of the power supply is added to the tube. Assuming that the efficiency of the power supply is 88%, there is 2.4W of heat to be dissipated, which is equivalent to an additional 30% of heat, that is to say, a total of 10.4W The power cannot be dissipated. It makes the heat dissipation of the LED more difficult, or in other words, the service life of the LED is also shortened.
The length of the power supply is about one-fifth of the length of the lamp tube. The heat generated by the power supply is also concentrated in this section, which makes the LEDs close to the power supply more hotter and has a shorter lifespan than LEDs in other places. When the lamp tube is damaged, the section close to the power supply blacks out first.
The life of the LED fluorescent lamp with built-in power supply will not exceed 10,000 hours. Moreover, when the power supply is put into the tube, the power supply itself has to withstand the high ambient temperature generated by the LED, which greatly reduces the life of the electrolytic capacitor in the power supply and also reduces the life of the entire lamp.
The above is the relatively short life of ordinary lamps
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