1,Constant Voltage 2,Output: 5W,12V 3,IP67,IP68 4,Certification: CE,RoHS 5,2 years warranty Why choose TOP's LED ... width modulation (PWM) switching technology designed to ensure power supply stability and high efficiency. 2. Product interference, through the EMC ... protection, short circuit protection, overload protection.5. Constant current output to ensure the stability of the power, so that LED ...