1. Pilot-oriented mode: Internal pilot or external pilot.2. Structure is sliding column mode: good tightness and sensitive reaction.3. Three position solenoid valves have three kinds of central function for your choice.
A universal fit for most DC 12V vehicles with standard car seat.Hi-Low heating stages optional,Seat and back part are seperately work, led lights show work status Automaticly turn off for safety and energy-saving 4.Heating pad can be remove when not neede