HRP-EP 1.too super thin ,the size of name card 2.the world's superest mini-ballast 3.Passed ROHS and E-Mark Certification 4.all of process run by auto machine 5.Protection of reverse connection: No damage against ballasts and bulbs will be caused by reverse connection. (In the extent of input) 6.Protection of short circuit: Lock protection against continuous or long-time short circuit. (In the extent of input) 7.Protection of open circuit: Recover when reboot. Lock protection in 0.5s after open circuit. Recover when reboot. (In the extent of input) 8.Special request: Water proof, shocking resistant Current Norm:3.3A Max Input current:6-7.8A Max Input power:40.5W Working Tem :-40- +105 Size:5.6*5.6*0.8cm