This sort of thread reminds me never to go out for a night ride with anyone who things that in their experience, 2000lm is a minimum for trail use 😉
Like Matt, I started with a lead acid battery powered Cateye. It had a 5w spot and a 10w flood and lasted 45 minutes at most. My first foray into modern powerful lights was with Lumicycle around 25 yrs ago, and I’ve stuck with them ever since.
Until I treated myself to an Exposure Diablo for my helmet earlier this year, I’d been using a unit from Moon and was very impressed with it. Think it cost £60 from Halfords and came with handlebar and helmet mounts, although it was a wired unit and this was maybe 6-7 yrs ago? It’s still going strong though, as is the Moon Meteor? Rear light that I got at the same time. Had all sorts of horrors thrown at them through multiple Scottish winters.