Specifications: It can be linked to various 12v batteries, batteries, battery packs, etc. and various switching power supplies. This professional soldering iron is suitable for basic DIY touch-up. For the typical electronics industry enthusiasts, manufacturers, repairers or DIY maintenance enthusiasts, it is a great choice. Item Name: Welding Pen Material: Alloy Plug Types: US Plug, EU Plug Features: Portable, Low Voltage, Welding Tools Size: 19.2cm x 2.5cm x 3cm/7.56" x 0.98" x 1.18" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: Type A: 1 x Welding Pen Or Type B: 1 x Welding Pen 1 x USB to BC Cable