MARTEK POWER SWITCH MODEL PVI50-21TA SWITCHING POWER SUPPLY MODULE, INCLUDES POWER HARNESS & MOUNTING BRACKET SEEN IN PICS. 100VAC - 240VAC 50/60HZ INPUT, +5 VDC 3 AMP OR +12 VDC 3 AMP OUTPUT, FULLY TESTED & FULLY FUNCTIONAL, 30 DAY WORKING WARRANTY.