SincereetaliFeatures: Using special internal heat precision welding head. Adopts 5V DC as working power supply, USB interface, plug and play. 3-level adjustable temperature, with green, blue and red light for low, medium and high temperature indication. Heats up quickly in less than 15 seconds, cools down in less than 30 seconds. Special welding head for internal heat soldering iron, concentrating heat energy. Light volume is convenient to carry, one button control, easy to use and. Effective protection against electrostatic damage to the welded body and preventing electric shock. Long-life tip with protective cap and the tip can be replaced easily. Features: Material: ABS + SS Voltage: 5V Power: 8W Item Size: 172 * 20mm / 6.77 * 0.79in Item Weight: 53g / 1.88oz Package Weight: 82g / 2.91oz Package Size: 19.5 * 7 * 2cm / 7.68 * 2.76 * 0.79in Packing List: 1 * Soldering Pen 1 * Holder 1 * USB Cable