Kausto-Lux II Hand Held Cautery Unit. The Kausto-Lux II is a low voltage transformer in the shape of a pistol with an automatic light. It has an output of 80 watts. It is equipped with the proven standard transformer and suitable for cauterisers. The cauterisers must be pressed firmly into the connection sockets at the end of the pistol’s handle, for safe and effective use. The Kausto-Lux II is turned on by pressing the button on the underside of the pistol handle. Cautery burners sold separately.