The L.T.F. DA45W1200C2036 is a 40w 1200mA constant current LED driver. It has a voltage range of 20 - 36Vdc and operates on 120Vac. The L.T.F. DA45W1200C2036 is also ELV and Triac dimmable. Also, available is the DE45W1200C2036 277Vac version and the DU45W1200C2036 220-240Vac version.