mean well ad-155a enclosed ac-to-dc power supply, single output with battery charger, 13.8 v- 13.3 v, 151.55 w, 2.0" h x 4.3" w x 7.8" lMean Well AD-155A Enclosed AC-to-DC Power Supply, Single Output with Battery Charger, 13.8V - 13.3V, 151.55W, 2.0" H x 4.3" W x 7.8" L.