Features:  1. Accuracy. Small distance between the iron head and handle. Easyto use just like writing with a pen.  2. Multiple tips can meet different needs.  3. Smooth use. When you writing and drawing. it works perfectwithout interruption.  4. Adjustable temperatures. It works well on paper, gourdwoodcut, root, bamboo, wooden products, coconut shell, PU leathe.  5. Scorch function makes it easy to use for beginners.  6. Portable holder to ensure safety and convenience.  7. Power saving. Power 60W, temperature could reach to 450℃.  8. Ceramic technology. The soldering iron heat up very quickly and keep steady.  9. Compatible with electronic welding. Change the converter, you canuse it to weld electronic products.     Specifications:  Name: 52 PCS Electric Soldering Iron Set.  Type: US 110V, EU 220V(Optional).  Uses: Pyrography, Solder and etc.  Power: 60 (W).  Temperature Range: 200-450 Degree.  Standard Soldering Iron Head: 900M-B.  Working Temperature: 0~40℃.  Storage Temperature: -20~80℃.  Packing: Cloth Bag.     Package Included:  1 x Soldering Iron Tool.  1 x Soldering Iron Stand.  1 x Connector.  32 x Soldering Iron Heads.  1 x Tinned Wire Pen.  2 x Word Boards.  5 x Pattern Boards.  6 x Pencils.  1 x Pencil S harpener.  1 x Work Bag.  1 x English User Manual