The hot spot is actually smaller than what shows in that last pic, the tiles in the picture on the wall are 12” square, the hot spot is about 8” at this distance.
Not exactly sure where the reflector came from George, it’s bigger than that though. A friend sent it to me and laughingly said see what you can do with this! He said there weren’t any more and the mfr quit making them. I was planning to build this light already, had the battery tube bored for the 32650 and was intending to use the reflector out of my Olight SR-90 Intimidator since I have the Lum 5-90 in that light. I think that’s what inspired my friend to send this one, going big go all the way… lol
I was talking with another friend with machining experience about the sheer size here, I only had the 4 1/4” bar and it wouldn’t be big enough to machine a head for this 98mm reflector, so he said why not just use it as a stressed member, like Ducatti does their engines? And so I did, threaded the reflector to fit the machined body part and bezel. Out of the ordinary, but then, it’s no ordinary light.
So I guess I modded 2 bars of 6061 into a flashlight. hahahahaha
Edit: This pic should show how it all started, the full sized bars are pieced together for testing of an emitter inside the reflector. I used my power supply for this test, but you can see the sheer mass of aluminum I had to carve away, hence 24 hours on the lathe…
George, look at how the hot spot throws a shadow onto the building from the tree between me and the barn…. the tree is 296 yds from where I was standing and 315 yds from the barn!!
The hot spot probably looks larger than it really is because I couldn’t hold the light steady in the 1/2 second exposure. The meds I’m on for nerve pain make me shaky. It is what it is.
Here’s a shot where I mounted the light on the tripod, same settings. I don’t like the lower light position as much as the overhead shot, but it is more stable for sure…
In retrospect, I could probably have used the 4.25” bar and threaded the end for an internal bezel, more of the retaining ring variety. Wish I’d thought of that when I was figuring out how to go about it as I’d like to have had the reflector encased inside a head as usual. Oh well, little to late to do the right thing now…
I took a chance on the ArmyTek Barracuda, they claim to have a redesigned style, new reflector and redesigned regulated driver. The very deep reflector is not quite mirror finished, but not exactly orange peel either, sort of a satin look to it. As such, the XHP-35 HI has fuzzy edges in the hot spot and it’s more blue/white than I like. So I ordered a new XHP-35 D4 from Richard in HD with 5000K tint.
Swapped it in and the hot spot is more defined, probably lost some throw but I like the beam more and the tint is a lot better. Easy enough to do, and I gained a 26mm XP footprint MaxToch MCPCB in the process.
Got my 70.2’s in yesterday for DBC-05, so I pulled the 50.2’s out and headed out to the shop to carve out the inside of the copper head for the new larger triple reflector. Got it all done and assembled, using iJoy 21700 cells it pulls 32.2A and makes 16,836 lumens! Nice progress, nearly 5,000 lumens for an emitter swap. Liking that!
Um, I found out where the limit’s are on the mini Omten switch.
Recharged the iJoy 21700 cells and put the light on the light box, no amp reading first this time. Start up was 17,215.5 lumens, at 30 seconds it was at 14,869.5 lumens and when I pushed the switch to turn it off the spring inside collapsed and the plunger wouldn’t return. Reckon it died a valiant death! lol
