Energy Recovery Products (ERP)PHB50W-0850-56
120 & 277 Vac, 90% efficiency, Rectangular Aluminum Case, High Performance Tri-Mode Dimming (Forward, Reverse Phase & 0-10V), 1-100% dimming range, 50 W max, Programmable 425 to 850 mA Iout, 56 V max Vout (Draco5 internal ERP code name)