Compact Gas Torch Portable Flame Gun for Camping Welding BBQ
This flashlight uses butane gas, which is very convenient. However, the flame is fairly weak and expands quickly, making it unsafe to increase its pressure. I keep it to myself because it's cheap and uses butane.
Pros
The gas consumption is 50-140 grams per hour, each gas can be used continuously for 1.6-4.4 hours, after the gas is used up, replace the new gas tank in only 2 seconds.