1,Constant Voltage 2,Output: 200W,24V 3,IP67,IP68 4,Certification ... Feature1.LED switching power supply using pulse width modulation (PWM) switching technology designed to ensure power supply stability and high efficiency ... ensures long-life LED lamps, reducing the LED light decline.Certification Service If product quality problems occur ... . Street light waterproof IP67 LED Power Supply 24v DC 200W