The DLS-30 Power Converter/Battery Charger from IOTA Engineering converts nominal 120 AC voltage to 13.4 DC voltage for both DC load operation and 12V battery charging.As a power supply, the unit's tightly controlled regulation allows the user to operate a nominal 12VDC load up to 30 amps.As a battery charger, the unit will maintain the battery, delivering its full-rated current when the battery capacity falls sufficiently low.Input voltage 108-132 AC.Output voltage 13.4 @ 30A, 400 watts.Dimensions 9.7" x 6.7" x 3.4".