Powers AC products up to 250, 800, 1500 watts. High surge capacity for starting demanding loads. Regulated output. Auto shutdown prevents total battery discharge. Silent operation. Built-in mounting brackets and DC post connectors for convenient hardwire installations. Built-in display for DC volts & amps (# 800, 1500). Supports addition of external AC outlets. Includes remote ON/OFF switch (# 800, 1500). Modified sine wave output waveform. 90% Peak efficiency. AC output voltage - 115 VAC RMS +/-10%. 32° F to 104° Output temperature range. Regulated output. Hardwire DC connection (# 800, 1500). Ideal for operating resistive loads. Its solid-state circuitry precisely regulates the voltage and frequency of the modified sine wave output, and automatic low voltage shutdown protects your expensive batteries from excessive depletion. Suitable for a variety of power tools. Low voltage shutdown. Overload shutdown. Over temperature shutdown. Over and under voltage protection. Low voltage alarm (# 800 & # 1500). Battery reverse polarity (fuse protected) (# 1500). Model Continuous Output . Surge -------------------------------------------------------------------------------- PROwatt 250 250w . 500w -------------------------------------------------------------------------------- PROwatt 800 800w . 2000w -------------------------------------------------------------------------------- PROwatt 1500 1500w . 3000w -------------------------------------------------------------------------------- PROwatt 250 AC output frequency 60 +/-0.05 Hz, crystall controlled No load current draw - <0.1 A AC receptacle - 3 Prong Internal fuse - 30 A Dimensions: 1.5" H x 4.5" W x 6.0" L Weight - 26 ounces PROwatt 800 AC output frequency 60 +/-4 Hz No load current draw - <0.3 A AC receptacle - Dual GFCI Internal fuse LED display DC Volts & Amps Remote Switch Dimensions 2.5" H x 4.25" W x 0.5" D Dimensions 3.25" H x 9.5" W x 10.25" L Weight - 5.8 lbs PROwatt 1500 AC output frequency 60 +/-0.01 Hz No load current draw - <0.4 A AC receptacle - Dual GFCI Internal fuse LED display DC Volts & Amps Remote Switch Dimensions 2.5" H x 4.25" W x 0.5" D Dimensions 3.25" H x 9.5" W x 16.25" L Weight - 8.25 lbs