New Cree Leds(XHP70 in HI coming 2022)

The output curve sees to peak at ~225%
Even the best bin only does 400lm at 100%, so max would be 900lm best case scenario.
Still definitely worse than the CULNM1 unfortunately (4040 size), and probably also worse than the CSLNM1 (XP size) when you take into account thermals.

The final version of the datasheet:

Nice! So we can expect 720 lumen at 3A, and 5000K, now see how they compare to the Osram version :slight_smile:

18 of these in an MF01S…hmmm…

agreed. ill take a 800-900 (hopeful) lumen K1 with > 500kcd range and 5000k tint. sign me up. :smiley:
plus, 3 amps sounds to me like good battery life?

yup! or 4 of them in a KR4 or D4. I just sold my beautiful brass d4v2 with W2 because i couldn’t justify the 6500k tint any more… It’d be awesome to have similar range in a 5000k tint!

Even with the highest bin, 800lm at 3A won’t give much more than 900lm at the peak of about 4-4.5A

Still quite short of the 1000-1100 of the CULNM1

CULNM1?

90% of cslnmn and 5k is good for me. 3A makes driver options pretty easy and cheap too.

Yeah sorry, that one :slight_smile:

Seems like the XP-P is ‘here’. As in it’s on Cree’s website. XLamp® XP/XT LEDs - Cree LED

1.05*1.05 mm die though, so it’s going to need some miracles to compete with the white flats on brightness alone. Likely lower cost, better availability, 5000K cct, and 3535 footprint are a big win though. I like how the surrounding silicone pour is below the plane of the phosphor. This should make for cleaner beams / less artifacts. 3A vs 3A, it should hold it’s own. Looks to be not much room for overdriving. Let’s hope we’re wrong about that somehow.

It has a pretty high forward voltage. The 219b/sst-20/LH351D have a forward voltage under 3.3V at 3A. The Xpp has a forward voltage of over 3.6v at 3A on the datasheet. This should be a fet capable emitter but I don’t see it going much over 800 Lumens even when overdriven.

As soon as one is available at reasonable cost I’ll test it and post results. Latest datasheet only shows U5 bin (360lm) available but in all CCTs. Hopefully 5000K rolls out soon and isn’t puke green.

Edit: The Vf looks to be nearly identical to the Osram Black Flat S (HHL532.TK). Running DD from an LG H26 I see a max of about 4.95A in a super low resistance build. So these should run nicely off of 3500mAh 18650s and 5Ah 21700s

Oh, we’ll throw the strongest cell we have at them and see if we can turn them blue.

I got 3 XP-P emitters in the mail today. Will post test results soon, but initial eyeballing says that our predictions are right. Not much headroom here. 3A lux reading was 1350, peak was 1500 around 4.25A (roughly). I ordered the 5700K (lowest in stock). Tint is purplish from the bare emitter. Check back later…

Yeah I’m more excited about the XHP50.? HI version.

The Vf on this thing is crazy high. Here’s a test comparing to all the Osrams that I have.

Put one in my Jacob A60. Beam and color are very, very nice. Will get kcd numbers shortly and edit this post. XPP yielded 224kcd. CSLNM1 (MTNe) did 233kcd, HHL532.TK (mouser) did 278kcd. Guessing this will slot in between, but nearer the NM1. For having 10% larger LES, this is a nice number.

Thanks for testing.
Difficult to say what this led adds to the CSLNM1, it may be a bit more efficient at lower currents, but less than seems because of the higher Vf. But if it comes in a range of attractive tints that could convince me to use it.

I think it would’ve been a hit about a year or two ago before 3030 and 4040 mcpcbs and gaskets were widely available and when DD FET drivers were king. Nowadays it’s not really doing anything special. If the 5000K comes in a bin or two higher flux, then it’s a different story.

Measured that A60… got 224kcd. So not quite hitting the NM1, but close enough. I feel like the hotspot is noticeably larger, but I can’t be sure since I only have one of these lights.

Could be useful for lights that have a weird reflector hole size with a non standard centering ring. Or a multi emitter light like a convoy S12 that use a non standard MCPCB that doesn’t come in 3030. I know it’s possible to put osrams on a 3535 but It seems like a pain.