540 lm:
Thanks
Have you tried taking a look at literally the first post in this topic?
BLF X5 (White Flat 1mm2 from LED4Power)
Hot spot:
CCT = 8823K (Duv –0.0110)
Color Rendering Index (Ra) = 69.6 [ R9 = 2.6 ]
Spill just outside hot spot:
CCT = 6701K (Duv –0.0048)
Color Rendering Index (Ra) = 67.5 [ R9 = –19.0 ]
Almost 9000k…
Wow that is pretty bluish, doesn't it? Sort of like 9300K temp adjusted monitors.
:-)
I have put the 1mm2 on the TX25C2 MTN Electronics 22mm FET driver, and the hotspot is the same size as the Thrunite TN31 but not as bright, it throws a lot. I don’t go over 75% power, when I do it turns pinkish to let me know that it is not liking the current.
The other 1mm2 was put on a Manker U11, made it more throwy, the last one will be put on the Manker T02
I re-measured the hotspot further back just to see, didn’t make much difference. On turbo it’s more purple than blue, probably since it’s below BBL
Note this is turbo and between 4-5 amps IIRC:
CCT = 8932K (Duv –0.0116)
Color Rendering Index (Ra) = 68.8 [ R9 = 3.6 ]
Hotspot on a much lower setting:
CCT = 6873K (Duv –0.0030)
Color Rendering Index (Ra) = 66.2 [ R9 = –25.2 ]
Which driver did you use? Purple tint suggests current is higher than 4-5A.
So white flats' CCT steers to higher numbers when overdriven? I see R9 gets better but let's say I'd prefer to minimize tint shift. What would be the maximum reasonable driving current for the CSLPM1.TG (2mm²), 8A maybe? Host will be a C8S.
It’s an x5 (fet) using vapcell 14500. Don’t think it’s above 5A. It’s not very noticeably purple just trying to convey to barkuti even though cct is high it isn’t angry blue like a $3 zoomie.
I measured a zoomie that has like 12-14 7135 and the tint is similar on max. It’s not overdriven by BLF standards
I’ve been looking through this entire thread, is this the only direct comparison between the 1mm^2 CSLNM1.TG (or Flat Black which is comparable size wise) & the 2mm^2 CSLPM1.TG? So both will produce a pure circle hotspot, the PM1 will just have a slightly bigger hotspot. Will the PM1 spill also be circular?
Then another question, how will a triple reflector like the BTU’s deal with the PM1’s rectangular shape? Is there an optimal orientation to place the LED’s?
Thanks
Is there any indication this will be offered in a temp closer to 5000k? This led and the SST-40 only being available in cold white/blue (to me) is why I don’t own any lights with them. I’d rather dedome an old xp-g2 or something than have a cold white light, but that’s just me. Doesn’t have to be crazy CRI-tint snob level, just not icepick blue please. Anyone with knowledge of the industry have a guess on if they’ll ever come out with a somewhat warmer option?
I don’t have any answer about a possible warmer tint, but I do know something : they are no blue by any means.
What you got with the white flats is a true cold white. It’s white, no hue of blue or green, just white.
Still, I agree with you, a warmer tint would be useful, especially in a long range thrower to cut through mist and fog.
I got what I think it’s a nice triple reflector host for 3 white flats, eagletac M30LC2-C… do you guys think 3 in parallel can handle direct drive with a high drain cell?
I put 3 in a 18650 C8F with FET driver. It works with even my highest drain batteries.
Any quick focusing tip for a CSLNM1.TG (1mm²) in a C8? I plan on using either a 5050 or a 3535 gasket, carefully glued surrounding the emitter. Should I file the gasket for the reflector to sit deeper?
Thanks.
:-)
With a 3535 gasket it will self centre when the reflector rotates as you fasten the bezel… But that’s if you have the reflector with the 7mm bottom hole. Sanding it down a tiny bit helps. My C8+ with CSLNM1.TG outperforms a stock L2 easily!
Stock gasket will be too thick. Around 0,6mm high is a good starting point for optimal focus