A portable emergency power source the clarke css 1 has a built in 260psi compressor for inflating carbike tyres air beds etc an adjustable 15w spotlight and integral 3 led work light when working in the dark a 25m male to male dc power lead for in car charging and trickle charge function for flat batteries peak 300 amp an integral usb port for powering laptops music systems electrical appliances etc and a 12v dc adaptor for powering mobile phones tvrsquos electrical power tools et