Only need to power by putting on the battery you carry, easy to use.This item can be worked on any of 6V-24V batteries.Note:Need 500-5000 mA current for normal use.It must use at least 6V 800 mAh batterySuitable for all RC Car and ratio.Note:Need 500-5000 mA current for normal use.It must use at least 6V 800 mAh batterySpecification:Material: MetalColor: blueInput Voltage: 6V-24VOutput Voltage: 1.20V-1.25VWeight: 52 gProduct FAQ:Q:Product does not work or smoke situation.A: 1.Please check the voltage and current whether is eligible.2.Check that the wiring is correct3.Check whether the short circuit: remove the white metal pipe, if the red line of plastic leather is damaged, power, the red plastic skin is melted, may be short circuit.Package included:1 * Electronic Glow Plug Starter IgniterOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.