Streetwize 800 Watt Power Inverter - Streetwize power inverters will enable you to operate your 230v UK standard appliances outdoors using a 12v car battery or portable 12v power source. (Not suitable fo9r 24v batteries). Ideal for use with all 12v cars, 4x4s, SUVS, Motor cycles. Also suitable for caravans, camping, boats, to operate laptops, stereos, TVs, DVDs, faxes, mobile phones, household & many other appliances outdoors. Over and under voltage automatic cut-off with under voltage alarm, internal short circuit protection cut-off & maximum wattage overload cut-off protection clear instruction manual included.