This is an FET CDI. The exterior is quite worn, but I confirmed it makes a sound when 12V power is applied. Also, the mounting part of the main unit has been modified. I haven't confirmed its actual operation because I don't have a real vehicle. It was very effective on 2-stroke Jimnys like the SJ30 and SJ10. Everything in the images is included. It's junk, but thank you. Please refer to the wiring diagrams online, etc.