•Size: 8.25" x 4.5" x 13" •Weight: 8 lbs. •40 Amp Continuous Rating, 100% Duty Cycle •Variable Voltage Control 5-15 VDC •Voltage Control Knob has center detent at 13.5 VDC •Overload & short-circuit protection with Current Foldback at approximately 42 Amp •Over Temperature Protection; variable speed fan automatically controlled for quiet operation •Meter Selector allows monitoring of voltage & current •Access to front panel DC terminals and cigarette lighter jack; standard 40A terminals on rear panel •Built-in 8Wspeaker •Circuitry yields high RFI protection from external sources •AC line filter for EMI protection •Standard 3-wire heavy duty line cord •Power Indicator & Overload Indicator •Accepts 120 VAC ± 20% 50-60 cps (Not compatible with 220V) •Ripple & Noise less than 8 mV r.m.s. •1 Year Limited Warranty