OSRAM CSLNM1.TG & CULNM1.TG 1mm², CSLPM1.TG & CULPM1.TG 2mm²

1700 OTF lumens from a dedomed XPL cant be right

I’ve been thinking about this recently….
Member A to member B comparisons are really bad. We’re all over the place.
See this:

GT Mini is 106-170 kcd (without outliers 106-145)
Manker U21 is 79-127 kcd (without outliers 96-127)
Utorch UT02 is 60-105 kcd (without outliers 75-105)
Thrunite Catapult V6 is 151-195 kcd (there are no outliers)

I wonder if the recent djozz’s research into lux meters and maukka’s calibration sets will improve the state of affairs….I surely hope so.

Unless an inexpensive luxmeter is cross-verified by other more expensive (read currently calibrated/certified/industrial/commercial/professional grade luxmeter’s) I don’t trust the reading by anyone’s single luxmeter to be accurate. Not even my own inexpensive single luxmeter.

Of course I might be more inclined to believe any poster’s reading if let’s say three different brand luxmeters were used identically during the test and then their results were compared and THEN were averaged. I might kinda have more trust in that averaged reading. :student:

Just too many people using different apparatuses, distances, setups, and other sundry uncertified tweaks and inherent nuances in the instrument itself, much less the skill/competence of the operator, for true accuracy reliance on my part. JMO. :open_mouth:

You’re probably right. Maybe it’s more like 1500-1600 djozz lumens. In any case the performance of this CSLPM1 is great.

If only measuring light was as straightforward, accurate and cheap as measuring voltage….

Happened across the fact that OSRAM recently listed a monochrome green CSLNM1. F1 on their site. I expect that monochromatic LEDs are not typically desired but it should be noted it maxes out at 560 lumens, 160 lumens over the CSLNM1.tg.

Anybody want to buy in on the 1000 min order? I’m in for 3 or 4…

Link please.
I’ll take 20-30pcs.

Osram announced a few months ago that they improved the efficiency of their green leds with 40 (!) %. This may be one of those.

Edit: it is listed at Mouser and RS but both show no stock.

Edit2: looking at the datasheet: it is not a real green led but a phosfor-converted green, far from monochromatic.

Oh, apparently I learned something I didn’t know, I assumed monochrome was simply single color. I What is the difference between monochrome and converted? Effective difference as I somewhat understand the phosphor converted. I expect it is the spike in wavelength in the blue freq…

On a separate note, with it being phosphor converted will a RTL collar work with these?

Thanks for the link.
I could not find what is the wavelength of emitted light in their datasheet!!!

Good point. Their spectral plot shows it peaking just below 525nm and the top of the curve spreading between 525 and 550,but they don’t bin them. In fact the only “bin” they list is “A” and they only associate that against brightness bin 5P

how is the beam in the 2mm^2 version? I see the die is rectangular, I wanted to use it in a C8 host but I don’t know if the beam is going to be right or this led should be used only with aspherical lens

You will not notice anything different in the beam when the 2mm2 Flat White is used in a reflector light.

the sofirn c8t driver can be bought from sofirn store on ali. its max 4.5 amp according to them.
Is there a reason this wouldnt work?
its pwm tho so regulated should be better right?

this is still a DD driver so no regulation at all, just their main Mosfet sucks so bad it has limit the current a bit, but not with ultra low Vf LEDs

Ow oke thanks for the response. I already ordered some 7135s so i guess my soldering skills will be called upon :wink:

MF04 on Osram 2mm² vs stock

NICE!

Which is which please?