I received my Nightwatch IRA from enogear yesterday - site is till down though. The IRA is one big chunk of alum with also a nice chunk of copper press fit, acting as a thick shelf for the MCPCB, which is also copper, anchored with 2 screws. It looks like a modder drilled out the shelf, cut a piece off of copper bar stock, and press fit it in there nicely.
It's one sic light, maybe the best heat sync'ing you will find in this size. But it only has a XHP-70, not XHP-70.2, but think enogear listed it that way, though looks like everywhere else it's listed at 3600 with a XHP-70.2. Max on turbo was only 2600 lumens on a Shockli 5500, think it was listed at 3600. UI doesn't quite match what's described on other listings - no manual, no shred of paper included and came in a plain, cheap OEM unmarked white box, in a bubble wrap bag. No spare o-ring, lanyard, etc. Not a good way to ship a heavy light, but the shipping bag had some padding to it, not your typical BG or GB bag. No shipping damage whatsoever.
The UI is a bit clunky - for the side switch, must cycle thru modes to turn it off for regular modes. For the lowest mode and turbo though, you can single click them off (press&hold for lo-lo, dbl click for turbo).
Can use the power tail switch though for power ON/OFF and last mode memory.
It's a very moddable light, so far - easy driver and LED access, no LED's under the switch though but maybe the switch board can be replaced. I'm looking at modding to a XHP70.2, custom 6V driver, using two 26350's - should be able to fit the cells with some modding for fitting longer cell space - brass button to replace the driver spring, mods to tail to get the tail switch deeper, etc. Think it would be a waste of the heat sync to only use a 3-4V LED.
