How it light:

Feature:Name: HV-1 high-pressure igniter (DIY kit, you need to assemble it)Input voltage: DC3-5VInput current: 3AOperating current: no less than 2.5AWorking mode: self-excited oscillation boostWorking frequency: about 20KHzContinuous working time: 10 secondsArc length: about 5 mmSize: 71 x 18 x 12mm (L x W x H)Ignition switch: yesWeight: 15 gPackage includes:5 xArc Ignition Lighter Kit

After assemble, for reference only