1,Power:150W 2,Output function:constant voltage/constant current 3,Protect function:overcurrent,overvoltage,short circuit... Main specification: ... .99 1,with constant voltage/ constant current output function2,with perfect over current, over voltage, short circuit,overheating, over power protect function3,Lightning ... ,can work steady at -40~+70°c 150W Aggregate-organ constant-current LED power driver