I've bought quite a few of Hank Wang's D4v2's from his website. I also just picked up a couple of his right-angled versions and head bands that work really well for head lamps. You can specify a deep red sst20 tint for astro and they'll go from a really low moonlight to very very bright and anywhere in between. They're a tad on the bulky side and it might take a bit of head scratching to get your head around the Anduril operating system but they make for a very good light. Website here:
https://intl-outdoor.com/led-flashli...ork-light.html Liteshop in Sydney have some really good lights too - I'm quite liking the Royvon E3 as a little cap light with red/white led's.