True sine wave voltage inverters provide clean, stable power for computers, radio equipment, home theater, stereo, marine equipment and other applications that are sensitive to AC voltage irregularity. Modified sine wave AC-DC power inverters are ideal for powering office equipment, television, power tools and lighting systems from your car, truck, boat, RV, solar system, or battery. DC - DC power converters housed in a metal case that can be easily mounted directly to (or near) your equipment. Step DC voltage up or down. Models are available with output power ranging from 25 Watts to 45 Amps.