The SOLDERPRO 120 is a Butane Powered Portable Multi-Function Heat Tool. Features: Equivalent to a power range from 30 to 125 Watts. Cordless. Simple and safe operation under any conditions anywhere. Ready to use 15 seconds after ignition. Tank contains fuel for 120 minutes of operation. No electrical interference. Visible gas display window. Comes with soldering tip and vented protective safety cap.