The sketchy ali vendor HX actually has 5500-5600K color temp under a TIR. The lowest of any of these osram LEDs I have seen (actually measured, I don’t count kaidomain “specs”). Not to say it’s some amazing tint just an observation

I had CULNM1.TG which is 4040 1mm2 version, I did not have CULPM1.TG for sale.

So what are drivers that should work with the CULPM1.TG ?
Will it work on the convoy drivers like the C8+ 12groups driver or the M21A 4 Modes driver that runs the sst40 ?

You pretty much want any regulated driver. I think the SST-40 drivers tend to top out at 5-ish amps though? Have yet to see for sure, but you can probably push more with CULPM1.TG. The 5A is pretty perfect for CULNM1.TG though, pity it’s discontinued.

the C U should be able to run on higher currents, i have got a LED4Power C S LNM1.TG happily running on 5A

I managed to “perfect” (in the possible way) the beam in my Eagle Eye X3R with an Osram W1.
(Previous posts on it: 1 & 2 )

I took the gasket out (to lower the reflector near to the PCB and led, and to erase the ringy around the hotspot), and applied some electrical tape and GITD tape over the pcb (for insulation and GITD effect).

Not pretty, but better than it was before.

I managed to get that small clear light circle in the hotspot, that was not happening before :partying_face:

Besides this I also put an Osram W2 on the On The Road Z821 zoomable flashlight! The beam is awkward, but I am waiting for the night to test it outside and check how it behaves :wink:

The mod is here: “REVIEW”: On The Road Z821 - Zoomable – 1x18650 – 940 lumens [Pic Heavy]

I was thinking of running the CSLNM1.TG using the convoy sst40 driver in an S2+, but Djozz’s test showed that it peaked at 4.5-5A and I’m worried about frying it with prolonged 100%

How does yours behave at 5A?

hello, best driver for osram 1mm red (CSLNM1.23) around 1.5-2A using single 18650? continuous use on C8+.

5 or 6*7135

thanks, but what do you think about the heat with the low Vf?

I’d use a buck driver.

which one do you recommend?

I gave you an answer here.

Any new experiments with the CULPM1.TG ?

I found this on youtube, ( i dont understand a word from it)

Hmmm, he’s using a fet driver. That’ll be great if it can handle it

Simon (convoy store) has listed this new beauty C8+ with osram KW CSLNM1.TG 6500K https://www.aliexpress.com/item/1005001400455356.html

Max range: 748 meters (140kcd)

I got 915m range at 4.2A, 700 lumens, and Convoy are using the 5A driver so it’ll do better.

I wonder why the rating is so low

Everyone should mention candela rating and not meters… ANSI standard? Well it kinda sucks… Mine 280 kcd light for me has usable 500-600 meters beam distance(depends on the night)… This is individual stuff. Cause there are areas with ultra dark nights where ansi measurements can actually pass. But it mostly won’t pass. So I don’t take only the beam distance as a relevant data… Candela rating tells much more about light so if candela rating is true and “right” by my personal experience I can estimate throw by my night conditions…, and if 140 kcd is true that is around 200-250m of usable light in mine area…

They convert perfectly back and forth. Neither measurement tells you any more or less than the other. Just take 2/3 or 1/2 the FL1 throw based on how much intensity you want at a given range and there’s your real-world throw.

In fact candela ratings can be deceiving since it requires exponentially more to increase throw, whereas doubling FL1 throw from 100m to 200m will have the visual and practical difference you would expect.