... 500W switch mode power supply,size;170*120*93mm,led driver,led power supply;bigger one PWM design, make sure ... assume stable power supply for LED lightings to reach long lifetime and reduce led light decay.*6, Input Voltage ... :500w*7, Non-waterproof*8, CE & ROHS certificate*9, Working tempreture: -25 to 45 degreesize:170*120*93mm ... power supply,size;170*120*93mm,led driver,led power supply;bigger one