Fit for biomaser machine, 24Karat pen, sage machine, and infinity pmu machine.
How to use 1. Press "On/Off" 3 seconds, speed controller starter work, pilot lamp light 2. "+" or "-" adjust speed 3. Light press "on/off", stop or start, pilot lamp keep light 4. Press "on/off" 3 seconds, close the controller. Pilot lamp closed. Packing 1 pcs speed adapter ( NOT INCLUDE THE PEN)
