1. led power supply, power supply led, 12v power supply 2. built-in EMI filter ,100% load test 3.Full range ... -1 standards.EMC standardsAccording with GB9254, EN55022 class A EN61347-2-13:2008 standardsEnvironmentalworking temperature- 20 ° ~ 60 ° c / 20% ~ 90% RH ... , 24W, 40W, 60W, 100W, 120W, 150W, 200W, 350W, 400W available. 12V/24V DC 350W LED Power Supply