I was wondering if anyone had upgraded any of their flashlights with one of the Teralux LED kits. I just ordered one for my Streamlight Stinger, but haven't received it yet. Their website says that it will produce around 220 lumens, which is about 4X what my stinger produces now. I was hoping someone else has some experience with them that might be able to tell me if I wasted my money or not. With good luck, it'll be as bright as advertised. I just find 220 lumens to be too good to be true.