Converts 12V DC to 230V AC and has reverse polarity protection. Designed to be hard wired into 12V supply. Fitted with a USB port for charging mobile phones and MP3 players etc. 1000W continuous power (2000W peak power) ideal for use in caravans, boats, HGVs etc. for appliances that use mains voltage. Has two standard three pin plug sockets, on/off switch with LED power indicator, cooling fan and overload shutdown/alarm. Base fixing facility for permanent use. Display packed.