Here’s mine, far beyond CRX’s mod 
I just can do a LED swap on Novatac 120T :partying_face:
Cool, looks brighter. Did you have to file an MCPCB into a cross shape or use another method?
I modded a floodlight by swapping out the original cool white LED with the (supposedly) 90 CRI, 5000k CCT I bought from alibaba for use as an improvised desk lamp.
Modding in action. The original LED (bottom right) is 20w where the new one (wired) is 30w. I’m actually under-driving the one I used for replacement, but that’s okay. 20w is plenty bright for an improvised desk lamp.
Some cactus shot under the modded light. Does this looks like 90 CRI to you?
The LED used for modding. I had 4 of them in my possession. One used in this project, three to go.
I’m using normal 16-17mm MCPCB and solder short wires to the driver contact.
Replaced the XHP35 in the Thrunite Catapult V6 with a 3A 5000K 5A 4000K XHP50.2 (12V) to see how the larger emitter would work in a throwy reflector.
From 3 ft - XHP35 Original on Left/Before, XHP50.2 swapped on the Right/After
With the XHP50.2 the beam is wider and slightly less intense as anticipated.
From 50 ft
The effect of the XHP50.2 emitter being larger and HD rather than HI.
Brightness intensity at the hotspot was less because the XHP50.2 is a larger emitter and it definitely no longer throws as far but at medium range is quite bright (perhaps even brighter?). I think I like the results and will probably keep as is.
(Edit - replaced photos with 4000K tint XHP50.2, the first 5000K one had issues on turbo and eventually died 
Dedome the emitters. You will see a large difference doing so.
Good suggestion BlueSwordM. that’s definitely next on the list of mods to consider.
My current mod/tweak is to get the emitter dialed in. Other users indicate that de-doming worsens tint-shift which is something I’d like to avoid.
pc-l, on the 50.2 it’s a flip chip technology which means it doesn’t have bond wires up top. You can slice the dome off quite close to the phosphor then, in a vertical action, dice the yellow surround off the substrate so only the die surface has phosphor on it, this will virtually eliminate the egg yolk aura and leave you with a pretty tight hot spot and decent-ish beam profile. I just got a new Emisar D1s with XP-L HI and the hot spot is virtually the same size as my sliced/diced/shaved XP-L2 in my older one, same flip chip technology in the XP-L2 as the 50.2. 
E21A 2000k R9050
Virence quad board
$0.18 faceted reflector from ebay
Nanjq 105D flashed with gChart ramping UI
Nice! I like the look of that
Thanks Dale, will keep that in mind, I will probably do it step wise, (1) focus emitter, if unhappy with beam, (2) slice and dice. I’ve de-domed once or twice but never intentionally 
Staticx57, got beam shots of that lovely facet?
Can you give us link for the reflector?
+1
It’s no LEDiL boom but it works with the E21As
It really seems a bit worse in the pic than in real life. Doesn’t bother me at all and more importantly no donut hole. Someone should try it with a single emitter.
Do you think an XHP70.2 would fit the reflector?
Interesting that you mention the XHP70.2, in comparable value lights I’d actually considered the Thrunite TC20, Rofis MR70, and Lumintop ODF30. But decided I liked the throw and size (and value) of the Catapult best.
There’s plenty of physical space for just about any size emitter to physically fit into the hole at the base of the reflector, the challenge (for XHP50.2 or XHP70.2) is to find the right MCPCB size that would allow -
- the emitter to reach the correct height/depth into the reflector,
- the wires not to interfer with or short against the reflector, and
- use of a 12V emitter, to avoid also changing out the driver board.
The available larger boards that work with #1&2 above, don’t support #3 (they’re 6V). The closest I’ve gotten is the 12V XHP50.2 20 mm Sinkpad, it works great for #3 but only partially for #1&2. I will need some tweaking to get closer.
Heck, I even considered reflowing to XHP35 HD neutral as an option to gain a more spread in a neutral/warmer tint.
Thanks for your reply, I would like to have the bigger reflector of the V6, here it is against the TC20.
You can make any 6V MCPCB work with 12V emitters see this and that.
Check MaxToch, they made a large MCPCB for using the 70.2 in their Shooter…
The 70.2 needs to sit lower (further out) in the reflector for proper focus when compared to the HI style emitters. I can get away with sitting some reflectors on the MCPCB when using the HI sometimes but the 70.2 likes to have a centering ring to get some space in there.
And yes, cutting the trace and bridging can make a 6V board work as a 12V set up. I like to use a scalpel and cut two parallel lines, then pull the copper off between the lines.