Experience with xhp 70.3/50.3

14 posts / 0 new
Last post
devryd
Offline
Last seen: 5 days 16 hours ago
Joined: 02/04/2020 - 07:11
Posts: 132
Location: Germany
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.

LunaLoves
Offline
Last seen: 21 min 33 sec ago
Joined: 05/13/2021 - 16:21
Posts: 27
Location: Hamburg, Germany

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

Haukkeli
Offline
Last seen: 10 hours 42 min ago
Joined: 06/24/2021 - 05:27
Posts: 361
Location: Suomi

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.

thefreeman
thefreeman's picture
Online
Last seen: 3 min 10 sec ago
Joined: 01/06/2020 - 09:56
Posts: 1337
Location: France
Haukkeli wrote:
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

buck91
buck91's picture
Offline
Last seen: 3 hours 31 min ago
Joined: 07/29/2016 - 08:21
Posts: 741
Location: Michigan

LunaLoves wrote:
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

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.

Haukkeli
Offline
Last seen: 10 hours 42 min ago
Joined: 06/24/2021 - 05:27
Posts: 361
Location: Suomi
thefreeman wrote:
Haukkeli wrote:
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


Haukkeli
Offline
Last seen: 10 hours 42 min ago
Joined: 06/24/2021 - 05:27
Posts: 361
Location: Suomi

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

Haukkeli
Offline
Last seen: 10 hours 42 min ago
Joined: 06/24/2021 - 05:27
Posts: 361
Location: Suomi

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

thefreeman
thefreeman's picture
Online
Last seen: 3 min 10 sec ago
Joined: 01/06/2020 - 09:56
Posts: 1337
Location: France
Haukkeli wrote:
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.

raccoon city
raccoon city's picture
Offline
Last seen: 2 hours 50 min ago
Joined: 10/06/2010 - 02:35
Posts: 18482
Location: Palm Desert CA ~ West Coast is the best coast

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

Haukkeli
Offline
Last seen: 10 hours 42 min ago
Joined: 06/24/2021 - 05:27
Posts: 361
Location: Suomi

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

BlueSwordM
BlueSwordM's picture
Offline
Last seen: 46 min 12 sec ago
Joined: 11/29/2017 - 12:34
Posts: 6266
Location: Canada

This is at full power as well Angry

My very own high current Beryllium Copper springs Gen 3:
http://budgetlightforum.com/node/67401
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547

Haukkeli
Offline
Last seen: 10 hours 42 min ago
Joined: 06/24/2021 - 05:27
Posts: 361
Location: Suomi

Here are my measurements

everydaysurvivalgear
everydaysurvivalgear's picture
Offline
Last seen: 9 hours 6 min ago
Joined: 07/31/2015 - 10:25
Posts: 3785
Location: sydney australia (GMT+10)

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.