... /48V/500W switch mode power supply,size;170*120*93mm,led driver,led power supply;bigger one PWM design, make sure the ... less than 20MV.*3, Efficiency above 80%, exotherm less than 25 degree*4, Function: with overvoltage protection, short-circuit protection, over-load ... voltage output, assume stable power supply for LED lightings to reach long lifetime and reduce led light decay.*6, Input Voltage: AC110 ...