Features: 1. Product use: factory equipment maintenance, electrical appliance repair, car welding, circuit board repair. 2. How to use: Use high-quality gas to fill and flush, and make sure that the switch is at OFF, introduce the gas tank into the air hole, and press down to inflate. 3. If there is a hissing sound at the tail after the gas has been poured in, use a pen tip to slightly press into the air port to eliminate it. 4. Push the switch to the ON position, push the flameout ring forward, and use an igniter or lighter to ignite near the connector. Ignite the fire and burn for 3 seconds, then move the flame extinguishing ring to its original place. When the fire is extinguished, the iron tip will continue to heat up. 5. Adjust the size of the flame to increase in the direction of + and small in the direction of -. Specification: Capacity: 8ml Material: Plastic Temperature: Flame Temperature 1300degC, Soldering Iron Temperature 450degC Fuel Used: Pure Butane Use Time: 35-45 Minutes Notice: 1.Due to the different monitor and light effect, the actual color may be a slightly different from the picture color. 2.Please allow 1-3cm differs due to manual measurement. 3. The temperature of this product is as high as 1300degC (the soldering iron temperature is 450degC). Please pay attention to safety when using it. Turn off the switch after use. 4. When using a gas soldering iron, please pay special attention to the operation until the flame is completely eliminated and the object inside the soldering iron turns red. The flame size should not be large to extend the life of the soldering iron tip. includes: 1 x Soldering Iron Pen