Car carbon seat heating mats retrofit kit 3-stage round special features: heating mats made of unbreakable carbon fibres. Noticeable heat after 60 seconds. - Long-lasting - Invisible under the seat cover - Maintenance-free - Can be cut to size Box contents: 2x heating mats each 480 mm x 270 mm made of carbon (set for one seat) Complete wiring 1x switch with 2 levels and LED 1x relay and temperature sensor (already integrated) Description: Complete seat heating for retrofitting (Drivers seat - passenger seat - rear seats) The heating mats for the seat and backrest are inserted between the cushion and the seat cover, the shape of the seat is not changed. Power is supplied via the included cable set and switch. The seat heater fits any car with removable seat cover. (Leather seats, fabric seats, sports seats) At full power, the heating mat reaches noticeable heat from just 60 seconds. 2 x level control with red and green LED (50% = green light / 100% = red light) E8 approval marking: CE technical data: cable length: approx. 2 metres, material: carbon fibres, power supply: 12 volts (car battery), 35 watts per mat (total 70 watt), seat heating: length: 480 mm, width: 270 mm, approx. 1 mm flat switch: depth 15 mm / diameter inside 18 mm / outside 23 mm. Please have the heating mats installed professionally by a specialist workshop.