Copyright 2008 Michael Mc Grath POB 129 Hewitt,NJ 07421.

A close up of the DC/AC inverter. This is a Heart interface model HF-600 12 volt DC 600 watt inverter. Ultra high efficiency, regulated voltage and frequency output, capable of 1500 watt surges. Modified sine wave output. In 1987 this was state of the art. There was nothing better available. I paid $450 dollars for it back then. It worked out of the box in Dec 2007. For many years it was in a self storage facilty where I know it was exposed to temperature extremes of zero degrees F to 120 degrees F. Specs are 5 amps out put. 120 volts (+/-5% true RMS), frequency regulation 0.5%@60Hz, no load power drain 700 milliamps,low battery cutout 10 volts. It has circut breaker (the white button with red 5 on it), electronic over load, thermal overload, high and low battery cut out protections. Plus it came with 2 gauge battery wires with heavy duty lugs on the end and color coded, has ground terminal on chassis case. Heart was bought out by Xantrex. I'm using it right now as I write this, to power lights and my boom box. Get a load of this...it was made in the state of Washington,USA. i recently purchased a Samplex 600 watt pure sine wave inverter for $250. It is described as light duty. but i need it to power NiCad battery chargers and nickle metal hydride chargers. The chargers freak out if they dont get pure sine wave. So cart #3 will be decated to special electronics. The Hearts will run lights and power tools.