1,Constant current 2,Output: 3W,12V 3,IP67,IP68 4,Certification: CE,RoHS 5,2 years warranty Why choose TOP's LED Lighting *ISO9001 ... power supply stability and high efficiency. 2. Product interference, through the EMC testing, ripple ≤ 50MV. 3. Efficiency above 80%, temperature ≤ 25 °C. 4.LED switching power supply ...