The L.T.F. DA40W700C3654 is a 40w 700mA constant current LED driver. It has a voltage range of 36 - 55Vdc and operates on 120Vac. The L.T.F. DA40W700C3654 is also ELV and Triac dimmable. Also, available is the DE40W700C3654 277Vac version and the DU40W700C3654 220-240Vac version.