Portasol 010368100 P-50 Butane Powered Soldering Iron Features unique tip system in which tiplets are attached to a replaceable heater, thereby reducing the cost of spare tips Cordless original flint ignition fitted with 2.4mm chisel tiplet 50 watts equivalent (fixed temperature), 40 minutes continuous use Ultrasonically welded gas tanks prevent gas leaking on exposure to impact, UV light or hot and cold temperatures. Butane compatible DuPont plastics ensure reliability and durability