ITEM NAME:Mini Cordless Butane Torch Gas Solder Pen Iron Gun Kit Soldering New F7T5.Easy to maintain (uses lighter butane). Refillable - Uses widely available Butane Gas. Ideal for light welding, repairs, soldering, jewelry making, hobbies, crafts, model making, etc. Soldering iron temperature: 210ï ½Å¾400 °C.