White LED belongs to a voltage sensitive device, in practical work is based on the 20mA current limit, but often because of the use of various reasons caused by the current increases, if protective measures are not taken Led cabinet light , this increased current over a certain period of time and amplitude of LED can be damaged
In 1, the supply voltage of the sudden rise.
In 2, line of a component or printed lines or other wire short circuit and the formation of LED power supply access local short circuit, enabling the local voltage increases.
In 3, a LED because of their own quality causes of damage and its original form a short circuit, voltage drop is passed on to other led.
In 4, the lamp temperature is too high, so that the LED performance deterioration.
In 5, the inner part of the lamp into the water, Led Kitchen light the water is conductive.
In 6, when the assembly did not do good anti-static work, make LED inside has been hurt by the electrostatic. Although applied is the normal values of the voltage and current, is extremely easy to cause led damage.
