Only need to power by inserting the battery you carry, easy to use. This item can work with any 6V-24V battery. Note: Requires 500-5000 mA current for normal use. Must use at least a 6V 800 mAh battery. Suitable for all RC cars and ratios. 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 produces smoke. A: 1. Check if the voltage and current are within specifications. 2. Check if the wiring is correct. 3. Check for short circuit: Remove the white metal pipe; if the plastic insulation is damaged, or the red plastic cover is melted, it may indicate a short circuit. Package included: 1 x Electronic Glow Plug Igniter Only the above package content is included; other products are not included. Note: Lighting and display differences may cause slight color variations between the item in the picture and the actual item. Measurement error allowed is +/- 1-3 cm.