... SCP, OPP, OVP, OTP YSV-20 Series (Constant Voltage Type)Waterproof LED Driver 20W(12/24VDC)Typical Feature1. 3 years warranty2 ... customized ApplicationSuitable for LED electronic display screen, LED stage lights, LED spot lights, LED bulbs, LED panel lights, LED ceiling lights, LED tubes...etc ... green,low-carbon,erergy-saving,favorable world! 20w constant voltage waterproof LED transformer 24v