Features: Using a 110/220V 50HZ power supply- with a power of 30W/40W optional ; Before use,turn on the power and preheat for 3-5 minutes; Press the piston- handle, align- the tin suction nozzle with the welded part, and after the tank- body melts, press the control button to suck the weld seam- into the cylinder-; The fuel- tank- suction device is equipped with two suction nozzles with different diameters, depending on the thickness of the lead components-; When welding, the operation is the same as soldering iron, which can be used for both welding and tin absorption. When disassembling a steel cylinder-, press the top of the cylinder- in the direction of the arrow- and simultaneously pull the cylinder- and handle to separate the cylinder-; When disassembling the suction nozzle, rotate it counterclockwise to remove it. Specifications: Item: Electric Soldering Iron Voltage: US110v / EU220v Power: 30w 40w Size: as pictures Color: Blue Temperature Range: 200-400℃ Package Includes: 1 Set Electric Soldering Iron note: Please allow 1-2cm errors due to manual measurement,pls make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.