· Driver and Junction box/enclosure two in one· Output constant voltage 12V 300W· Universal AC input :100-277VAC· Built-in active PFC function PF>0.98· High efficiency :up to 90%· Protections:short circuit/over loading/over temperature· Full protection aluminum housing easy installation· Cooling by free air convection· Work with leading edge and trailing edge/forward and reverse phase dimmer, MLV and ELV and other Triac dimmers· Strong compatibility, flicker-free dimming· Compliance to worldwide safety regulations for lighting · They are suitable for indoor and outdoor location use· UL listed, FCC pending