... ship, medical ambulance, traffic lights; etc.2) industrial equipment series: solar, wind power and metal-halide lamp, etc. 3) office ... printer, duplicator, scanners, digital camera, etc.4) kitchen utensils series: microwave oven, refrigerators, batteries, 5) family electricity equipments: ... 6) inverter 12v 500w are used for lectric tool series: power saws and drills, stamping equipment, air compressor, ...