No I didn't see that about Manker! Boost drivers are in almost every single cell light, so we are in big trouble if they have suddenly become unavailable or greatly more expensive. I'll check the flashlight forums.

For some reason I was never that excited by the E02 series and was just thinking of ordering an HL10 right after complaining about its price (with 20% off coupon and free shipping it's fine I guess). But these lights are still too big and complicated. I want something like a Skilhunt E3A but right angle, 1 or 2 levels, mechanically switched, no parasitic drain, no microprocessor. Manker E02 is 21g without battery or headband, Skilhunt E3A is about 8g and is 12mm shorter. With an ultralight headband ( https://imgur.com/a/8bkJSMZ shows one for Nitecore NU20), an E3A-style headlamp can probably come in under 1 oz all up (10g light, 8g L92 battery, 8g shock cord headband). The 1oz is an arbitrary boundary but the E02 and HL10 will both end up exceeding it.

Ok, maybe I will order the HL10. If I do, hikerman talked me into it wink.