I just wanted to say thank you. I have beyond terrible night vision from long term effects of chemo therapy, from when I was just a baby. It is so hard from me to function in the dark while camping or even just in the dark corner of the garage. Your lights are the first flashlights I am completely comfortable in the dark with. I have your HP5, the headlamp(brightest one you sell) and the 220 lumen quick adjust one. They make my life so much easier I seriously THANK YOU for what you do. I heard that you have a new upgraded version of the x21 coming out in June and I cannot wait for it! I will for sure be one of the first to buy it. For me the brighter the better! you guys make it possible. Keep it up guys!!