e charger shall be 50000 hours minimum while operated at 25C ambient, 120/230Vac input line voltage and maximum output current and voltage .
5.2开关ON/OFF
The LED power should withstand at least 3000 switch ON/OFF at worst case environmental parameter and full load.
5.3电源循环工作测试POWER CIRCLE WOER TEST
在正常输入电压，最大使用负载工作情况，电源在环境温度为50℃负10℃50℃之间循环工作。操作方法如下：
1),将电源放在环境温度为50℃环境下