True Sine Wave Power Inverter High quality power inverter provides 300W of continuous 120VAC power from a 12VDC power source. Unlike conventional lower cost inverters, which provide a stair-step “modified” sine wave, this unit provides smooth, pure sine wave output, identical to that from the utility company. This is especially useful when powering sensitive test and measurement equipment, medical equipment, motorized devices and some computer products. Input connections are heavy duty screw terminals, output is a standard three-prong (NEMA 5-15R) AC receptac