Hyper Flame Gas Torch ZT50 with Refill Has a long burn time. I have personally tested it for 20 minutes burn and then switched it off and restarted it for another 20 minute burn. A customer got a 55 minute continues burn time from his Jet Flame Lighter. The blue colour jet flame burns much hotter than and ordinary lighter with a yellow/orange flame and can be used to solder with. An excellent EDC or GoBag Lighter that can solder or boil a cup of water. Supplied with a 18ml refill In stock and available for immediate dispatch.