Built-in Car Seat Heater Kit Universal 12V Carbon Fiber Heating Pads 3 Levels Square Dual Control Switch System Fit 2 Seats Features: 1.Built-in car seat heater is installed between the seat cover and seat cushion to enhance driving comfort. 2.Using the heater in winter can reduce the power consumption of the air conditioner, not only save fuel, but also relieve the stuffy feeling of the air conditioner and help relieve driving fatigue. 3.Universal fit for most car seats in DC 12V systems, such as cars, SUVs, trucks, RVs, boats. 4. Seat heater kit with high and low temperature switching system,1 switchessuitable for installing 2 seats. 5.Made of carbon fiber, heats up quickly, has a long service life, is safe and will not corrode or crack. Specification: Material: Carbon Fiber Dimension(Unit): Approx. 52.5cm x 28cm (20.6"'""'" x 11"'""'") Wire Length: 2.3M (90.5"'""'") Color: White Power Rating: DC 12V, 27 3W Round Switch: 3 Levels Switch temperature settings with Harness 1 LevelThermostat: 30 +3 / -3c 2 LevelThermostat: 38 +3 / -3c 3 LevelThermostat: 45 +3 / -3c Fitment: Fits all seats such as car, SUV, truck, RV, boat, universal fit on any 12V DC system on leather. Package Included: 4 * Heater Pads 1 * 3 Levels Switch with Harness OR Only 4 * Heater Pads OR Only 1 * 3 Levels Switch with Harness If your car has not installed a heating pad, then you can order a complete set of products. ****It is suitable for installing 2 seats.**** ****If your car already have a heating pad, then you can just order the switch**** 1 set of switches and wiring harness can be installed with 2 seats If your car already has the right switch and wiring harness, then you can just order the heating pad. ****2 heating pads to install 1 seat****