Hey folks this is my initial testing of the Cree XP-P, i don’t have a lumen tube so i am doing what i can to measure output in different ways.
I bought two Cree XP-P from Cutter both are on 20mm T-Pads both are U5 bins, the XP-P i am testing is the 5700k the other XP-P i bought is NW 5000k.
Cree rate the XP-P at 700 lumens at 3amps, in my testing i got 750 lumens @ 4.5amps but that is inside a light. Throw is better than the best XPG2 dedomed but output being only 750 lumens is a tad down, if compared to a XPE its a whole new level.
I tested the Cree XP-P in a C8 using a Convoy 20mm 5 amp driver and a high drain cell, after checking if it would burn out with a low drain cell first lol. The XP-P tested at 4.5 amps max current for a whopping 750 lumens.
First look Cree XP-P left and Osram KW CSLNM1.TG
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The XP-P looks happy at about 4.3-4.5 amps
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I measure the lux at 5 meters indoors and i took the average of the 3 readings which was 8130 lux @ 5m 203250cd
The three reading are as follows
- 7750 lux a @5m = 193750
- 8540 lux @ 5m = 213500
- 8110 lux @ 5m = 202750
- Average 203250cd
Fence is 20m away
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Tress are 150m away
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For comparison i have a C8 with the SFT-40 and you can visually see the throw difference i ttesed this C8 at 169kcd and 2400 lumens
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Nice review. What does a c8 do (LUX wise) with a boost HL and boost HX
And also what is the LES (light emitting surface) of this new cree XP-P?
Sometimes being a newb is the best part of a hobbie
https://budgetlightforum.com/comment/1768377#comment-1768377
LES is 1.05mm*1.05mm, so 1.1mm².
On a lm/mm² basis, it should underperform 1mm Osrams by a measurable margin and be a near match to PM1s. But real world results are what really matter in the end.
I’m curious what numbers you get with NM1 in the same host as this XPP sample.
I have a C8+ I built with a 5A Convoy driver running a 1mm white flat which is putting out 230Kcd. I was hoping these new emitters were going to be up there with that, but with better tint!
If i remember correctly the Osram KW CSLPM1.TG does around 168kcd in a C8 i think.
The smaller Osram KW CSLNM1.TG was doing just under 200kcd in a C8 i don’t have it any more as focus was rubbish. When using the 3030 centering ring both the CSLNM1.TG and XP-P perform worse than using a 3535 centering ring.
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Isn’t XP-P 3535 emitter?
If so, no wonder you have focus problem
WTB Titanium 4sevens 2xAA tube
Not sure cause the 3030 where made for the Osram CSLNM1.TG and they fit the XP-P fine just don’t work great, its most likely the height that the reflector is sitting at these LEDs are really low. The 3535 centering ring is to big for the XP-P.
Light Reviews
Cheap Flashlight Durability Test
Ekoras R7 review
Multiband radio review
YouTube Reviews
Astrolux FT03 Luminus SFT40 Beamshots
Luminus SFT-40 test output + candela tested
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Scratch builds
6th Annual Old Lumens Scratch build entry
7th annual Old Lumens scratch build entry
The osram emitters are thinner than most, so they require a thinner gasket. Early 3030 gaskets like ones I sourced from mountain where waaayy too thick. With the HHL532, which is an even lower profile chip, usually tunes in at 0.40mm IIRC in convoy reflectors. So try 0.60mm and sand slowly from there
Yea i use to do this all the time when the XPL-HI came out but then i stopped because some of the centering rings where not flat after sanding lol. I own a sanding now.
Light Reviews
Cheap Flashlight Durability Test
Ekoras R7 review
Multiband radio review
YouTube Reviews
Astrolux FT03 Luminus SFT40 Beamshots
Luminus SFT-40 test output + candela tested
Ekoras S21 Review
Scratch builds
6th Annual Old Lumens Scratch build entry
7th annual Old Lumens scratch build entry