My strongest one is 65k but its focused as hell. Tbh i like edc lights much more. Like having a 65k light is cool but to our eyes its actually only twice as bright as a 13k lumen light and thats only twice as bright as a 2500 lumen one. Tho one thing that does scale to lumen is how large of an area it can light up. So if you light up 1m² with a 2.5k one then a 13k one will light up 5m² comfortably and a 65k one 25m²