Features: Easy to operate. Runs on butane gas, cordless- operation. 4 interchangeable tips-, base tip that can be used for blowing hot air, solder-. It heats- up quickly, faster than those with a plug-. One gas filling lasts roughly 30 to 40 minutes. Great for electric repair, jewelry repairing, circuit- boards soldering, general heating/drying, plastic welding, silver soldering and more. Specifications: Material: Plastic, Metal Size: As Shown Fire Temperature: Up to 1300°C(2500℉) Solder- Tip Temperature: 210-450℃ Package Includes: 1 Set Gas Soldering Iron note: Avoid heavy falls. Fill with high quality canned gas and keep it away from fire. Use of the iron head-, high-temperature and hot, do not touch- with hand. Replace the joint, wait for cooling to replace or change in advance. It is not suitable for children and should be properly placed when collecting. Because gas is more or less slag, it is necessary to clean the sprinkler regularly. Wait for cooling after use, then collect, do not place in high-temperature or direct sunlight.