Also throwing in the Wurkkos HD20. Great build quality, useful beam patterns with bright emitters, great UI and great runtime. The only thing I dislike is the greenish tint of the 5000 K LH351D. Also, getting the full package (light, decent battery, headband, clip, lanyard, USB-cable) for 41,39 $ (currently 39,39 $ on sale) on Aliexpress is hard to beat.
Yesterday Simon told me he’s working on his new headlamp model H2 and it should be out soon so… fingers crossed. It will have termal regulation but I don’t know any details.