I don't know how this is the number one flashlight. The quality of the goods is so-so. Mine came in an open box with some parts missing. But other than that I used premium butane as suggested by the seller, the light still wouldn't come on after at least 4-5 tries. Then the 3rd release, you can't light it with one hand. You must squeeze and release the safety with one hand while pulling the trigger with the other. This makes this flashlight almost useless most of the time when I'm holding a soldering product with pliers in my other hand. In general, difficulties in use, quality problems (received used item) and doubts about the life of the product.