I needed to fix my boat and trailer electrical wiring and was afraid to work with a Weller soldering iron, especially when working outside and in cold weather. but started and soldered a few joints before I left for the evening. Those few connections seemed to last forever. That evening I was browsing soldering irons at Revain and came across the Power Probe Kit. It had great reviews so I took a chance and placed an order. I decided to delay wiring the boat and trailer until the power probe arrived. The set arrived within two days. I took the kit to the garage, took some leftover electrical wire and solder, filled the block with butane and set it on fire. After tinning the tip I started soldering and was extremely surprised at how quickly it heated up and soldered the wires. After a test drive I went out on the boat and started repairing the wiring in the wind and cold. PowerProbe worked great! I soldered maybe 25 connections VERY quickly and the device worked flawlessly. My old Weller rifle was a toy compared to this one! I have lit it every time, there is no leak, flame adjustment is good. I am very happy with this purchase and would recommend it to anyone looking for a great soldering kit.