Altronics Power Supply, 12/24VDC/2.5AMP W/Cabinet, Camlock, Transformer, Includes Board SMP-3PM. SMP3PMCTX supervised power supply/charger will convert a 115VAC/230VAC, 50/60Hz input, into a regulated 12VDC or 24VDC output @ 2.5 amp continuous supply current. Wall mount enclosure for indoor use. Accommodates up to two (2) 12VDC/7AH batteries. Dimensions 13.5"H x 13"W x 3.25"D (343mm H x 330mm W x 83mm D) 1/2" and 3/4" combination knockouts.