1, LED running for a while, it is through the switch power supply leads of the current is too large, can check the current sum of the lead is more than the current value of the switch power supply. If yes, we should replace the power supply wire.
2, led just energized is very bright, after a period of time is not bright suddenly or brightness attenuation, can switch to check whether the power supply is 24V 12V led misuse of.
3, if no problem, then check whether the input voltage of the switching power supply is 220V if the LED brightness is high or low: check whether the input voltage and output voltage of the switching power supply is normal. Such as voltage high, will cause LED damage; if the voltage is low, will cause the LED light or brightness attenuation. If the user is located in a very unstable voltage, it is recommended that users install the regulator.