Now there is now no excuse not to have 115V AC power at your fingertips - anywhere you have a 12 volt DC power source. These compact, durable powerhouses are sure to please. The Schumacher PI-70 is a 70 watt power inverter, with a maximum constant power of 60 watts. Its compact design makes it lightweight and portable. The unit has surge protection, overload protection and low battery shutdown. No installation required.