Experience with xhp 70.3/50.3

Hi,
I noticed, that the xhp70.3 is available, but couldnt find any review of it yet. Did it just recently get released or is it just not interesting?
I found it on kaidomain, if that makes a difference.

The XHP70.3 HD is mostly(!) the same as the old XHP70.2, it just got less phosphor around the actual die so it should produce less of a rainbow effect

The XHP70.3 Hi is mostly(!) a de-domed XHP70.2, so it throws a bit more.

Both are nice but Imho just a small step and not a big leap

I have bought domed Xhp50.3’s from digikey in 4000K 80 and 90cri and in 5000K 80 and 90cri. All have had horrible green tint.

Which color and flux bin did you try ?
For 4000K there are ANSI, easywhite 3 and 2 step color bins, and flux H2 and G4, for 5000K ANSI, 3 step, H2 and G4.
I was hopping the 2 step, lower flux (G4) would be less green.

Link

Sounds like the XHP70.3 HI would be a nice swap in my Sofirn SP70. Does Sofirn use these in 6v or 12v configuration? Then again maybe not. Both 70.2 and 70.3 datasheets show bin ranges from M2 at 1380lms to P4 at 2164lms (at 5000k). KD has only M2’s in stock for the warmer (4000k & 5700k) emitters.

UH40E3 is best of these and with Opple and driven at 5A I had DUV 0.0054,5250K and 92.3cri. Measurement distance~2m.

Slicing did bring it down to 0.0050, 90.3cri and 4500K. So no use in slicing.

Well that’s really disappointing.

Thanks for the parts number tested, I guess I’ll try the lower flux and easywhite bins.

I like throwy emitters, so the XHP70.3 HI sounds like an improvement to me.

Xhp70.3 hi 5000K 50G 80cri from Kaidomain is ok. 0.0028 with Convoy’s purple AR coating 0.0000 with green AR coating.

This is at full power as well :rage:

Here are my measurements

The Cree XHP70.3-HI is an amazing LED, its heaps better than the XHP50.3-HI it actually throws much better than the XHP70.

Tested in my modified L6 i got 243kcd @ 5 meters, the L6 has a resistor mode done to the stock driver so it gets a little over 10amps.

I put chapters in the video so you can skip to when ever you want. Also i added my 3 Lux test as i was surprised by the numbers it got. After testing the XHP50.3-HI i was not expecting much lol, but the XHP70.3HI blew me away with its performance.

Well done! Thanks for taking the time to show us what a 70.3 HI swap can do. Those are some impressive and practical gains over your 70.2 sliced/dedome when both measured @10A.

Ive contemplated this swap for some time and your beam comparisons helped me decide. I bought a used stock GT4 (4 x 4000K 80CRI 70.2) with the intent of swapping in some 6500K 70.3 HI’s, but was surprised to find the stock GT4 typically offers far more throw than I could ever use. After a lot of research and viewing your video, I took my GT4 out for a long walk last night and drained 3 sets of cells, while trying to decide if the 70.3 HI would improve my typical usage case. At this point, Im probably going to leave it stock and live with the 4K tint… at least for now. For those in need of greater range with moderate spill, I think the simplicity of a 70.3 HI swap should satisfy most.

About my tint selection in throwers; I live in an area that typically has very low humidity with low amounts of suspended particulate in the air. These atmospheric conditions are optimum and greatly reduce back-scatter often associated with cool tinted throwers… as opposed to using them in areas with high humidity and particulate floating in the air (ie: water vapor, dust, pollen, pollution, etc). So for me, I much prefer 6500K for the greatly increased contrast and clarity while spotting distant objects. 6500K is even more useful for spotting distant moving objects or when used in aircraft landing and anti-collision lights, and on vehicles and bicycles traveling at speed; assuming the conditions are conducive to take advantage. For long range spotting, neutral and warm tints just dont cut it for me. Discerning the target form the background from long range often becomes vague or impossible, with the target getting washed out into the background from poor contrast (especially while spotting our abundant variety of local native wildlife). After demonstrating several lights to potential buyers, I always have a difficult time selling anything but cool white’s, not matter how much salesmanship I pitch for the high CRI’s and neutral/warmer tints. But it sure is nice having a wide range of choices these days. My clientele are typically hard core outdoors and use flashlights as tools (no ADD sufferers, collectors, or shelf queens).

Thanks again for posting your results. Once higher bins become available in 70.3 HI, I might need to reconsider. I do plan on eventually swapping some into my L6 and possibly a few other large reflectored multi-cell 70.2 lights buried in the closet.

Oops! Sorry for the long post… I talk, it types. :person_facepalming:

I haven’t found an XHP70.3 HD listed anywhere. I’d love to swap one into my Thrunite TC20 V2 just to get rid of that awful fried egg beam pattern. I have see the 70.3 HI listed at KD, but I’m not looking for more throw in that light.

I just got Simon to add a 70.3HI option on the M3 and M3-C if anyone is interested. On AliExpress.

Kaidomain has 4000k and 6500k now.

I have 50.3Hi 6500K in Sofirn C8L.
Good tint, impressive thrower and little heat.
You can read my review.

I am late to the party, but has anyone pushed these new 70.3 to the max yet?

I have an L6 with TA driver and 70.2 that may get an upgrade if the new led is up for that much power.