DIY kit suitable for all propane and natural gas gears, but you may need to make some modification during installation, it does not fit all current holes for installation or wire length (if the power supply is not enough, you can use two) Output voltage: > = 20kV, spark distance: 3-5mm, cable length: 30cm Applicable gas: LPG/NG, temperature resistance: -20C~120C Cable length: 30cm. Electrode: M10 x 1. Length: 51 mm. Straight pin length: 19.5mm. 135 degrees at head: 9mm No battery needed, just press a spark. Service life: more than 30,000 times Product Description Set of 2 Piezo push buttons with universal spark plug thread - 30 cm long Features and data: Spark distance: 2-3 mm. Length: 9 cm. Diameter: 2.6 cm. Output voltage: >= 18 kV. Pressure: 3.0 0.5 kg. Applicable gas: LPG, NG. Temperature resistance: -20C to 120C. No battery, just press a spark. Cable length: 30 cm. Electrode: M10 x 1 Length: 51 mm. Straight pin length: 19.5 mm, 135 degrees to head: 9 mm.