510 interface 40W soldering iron tip The highest temperature of AIR series is no more than 800 The resistance is 0.3-0.5 ohm Support automatic identification of resistance value of fuselage Automatic identification of resistance value of the fuselage can be used directly, voltage and power regulation with display body, it is recommended to use about 12-18w The higher the power, the lower the resistance is recommended The material is brass electroplating. Brass is much copper tip. It is not easy to oxidize and soften. The copper tip will be black after burning once, so it is not The adopts electroplating process, tin coating is better and heating is faster type: Pointed colour: gold and silver Material: metal Package Contents: 1 x soldering iron tip Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.