This is a compact & lightweight modified sine-wave inverter that is an ideal mobile office companion. The SAM-450-12 plugs into a vehicle's lighter socket and conveniently recharges & runs electronic devices such as camcorders, laptop computers, PDAs & computer games. It is also ideal for long haul truckers who need to power home appliances, consumer electronics and office equipment on-board their truck. It is also suitable for contractors to operate small handheld power tools from their van or pick-up truck. RV owners can also use the inverter for TVs up to 27".