I used to have a Wilma Flashlight and Betty flashlight, back in the day. I sold them in favor of other brands that are more compact and have sufficient output. My biggest gripe, is the cost of the light and the proprietary batteries. The cost of the additional batteries were also very high. I purchased them new from Gretnabikes, now Lupine North America, and dealt directly with them on some warranty issues, as the Betty was just released, back in 2013 I believe, when I was purchasing them. I had some flickering issues with the Betty Head, but they were excellent in sending a replacement in both 22 deg and 26 deg heads so I could decide which I liked better. I chose the 26 degree head, as it was more floody. Back then, the Wilma topped at 1000 lumens and would burn your hand if you left it on that mode, as it got very hot. Now I can get lights from other brands that suit my needs, without the astronomical price they command. Different strokes for different folks. I sold them at 50% of what I paid, because few will pay the high cost. I am a big fan of Zebralights for EDC, but for higher brightness and still using proprietary batteries, I chose the Olight Marauder Mini at 7000 lumens. Always good to have options. Coming from the days that the Polarion PH40 was the brightest out there, I owned one of those too at 4000 lumens using HID technology. I paid over $1500 for that one, but in the end, the issue was the proprietary battery and the fact that the HID bulb did not last that long, in comparison to emerging LED tech. I am also a fan of Nitecore lights, I am waiting for them to release something with their new UHI 50 and UHI 100 LED's, hopefully single cell, like the Olight Marauder mini.