What are the common causes of LED lamp damage under normal circumstances?
Because of its energy-saving, environmental protection, long life and other characteristics, the market demand for LED projection lamps is increasing. However, people often use LED lamps improperly in daily life, which leads to LED lamps no longer "long life". What are the common reasons for LED projection lamps to be damaged?
1. The power supply voltage suddenly rises and the surge increases.
2. The short circuit of a component or printed wiring or other wires in the circuit forms a local short circuit of the LED power supply path, which increases the voltage at this place, and makes the solder joint solder or loose.
3. Some LEDs are damaged due to their own quality, thus forming a short circuit, and its original voltage drop is transferred to other LEDs. The internal resistance of the LED changes, and the voltage on the LED is uneven.
4. The temperature in the lamp is too high, which deteriorates the characteristics of the LED; Local temperature rise inside the lamp is too fast; The temperature is too high during soldering or tin dipping.
5. Water enters the lamp, which is conductive. The hot air flow in the enclosed lamp accumulates to form water vapor or mist.
6. The light source is quickly turned on and off in the test, and the charge between the electrodes is discharged (that is, gradually extinguished when turned off).
7. The erosion of the washing water and the nanowave of ultrasound during plate washing.
8. Live operation; All fixtures and fixtures shall be anti-static; Maintain the temperature and humidity of the environment.
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