DIY kit suitable for all propane and natural gas gears, but you may need to make some modifications during installation, it does not fit all current holes for installation or wire length (if the power is not enough, you can use two) Output voltage: >= 20kV, spark distance: 3-5mm, wire length 30cm, electrode: M10 x 1 length: 57mm No battery needed, just press a spark, but only one spark but once the battery needed. Lifespan: more than 30,000 times Installation tips: very important. - Pack of 2 You need to force this point to a metal control panel or add a little metal to get a proper spark. Without a proper connection, the igniter cannot ignite the burner because the spark will not come from the electrode pin head. Straight pin length: 19.5 mm, 135 degrees to head: 9.0 mm