Converts 12 volt DC to AC power for operating microwave ovens, power tools, lights, air compressors, hair dryers, and more. Supplies 1250 watt continuous power, 24 hour rated. 3000 watt peak surge. Built-in surge protection allows for safe car startup and shutdown. Overload protection and indicator. Auto reset short circuit protection. 3 AC outlets with ground, alligator clips attach to the battery. Low battery alarm, automatic low battery shutdown when DC voltage falls. With cooling fan. Optimum efficiency 90%. Input voltage range 10-15 volt. 10 lbs., 15" x 8" x 3.3".