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 battery Suitable for all RC Car and ratio. Note:Need 500-5000 mA current for normal use. It must use at least 6V 800 mAh battery Specification: Material: Metal Color: blue Input Voltage: 6V-24V Output Voltage: 1.20V-1.25V Weight: 52 g Product FAQ: Q:Product does not work or smoke situation. A: 1. check the voltage and current whether is eligible. 2.Check that the wiring is correct 3.Check whether the short circuit: remove the white metal pipe, if the of plastic leather is damaged, power, the red plastic skin is melted, may be short circuit. Package included: 1 * Electronic Glow Plug Igniter Only 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.