"Throwiest" LED?

[light.speed]

16.8v

[steve500]

@light.speed

16.8v 

This should do it.

[light.speed]

Thanks SO much

[eas]

This or this will be significantly smaller and lighter than what steve500 suggested.

[steve500]

@eas

This or this will be significantly smaller and lighter than what steve500 suggested.

You’re not wrong, it’d depending on the current draw of your LED you’re wanting to run, I didn’t want to suggest anything under-powered.

[light.speed]

Why isn't there any talk on the newer Cree XP-L2? Since it is more efficient than the XPL-HI, shouldn't a de-domed one be able to throw farther than the XPL-HI same current draw? I'm currently considering either a de-domed XP-L2 or a de-domed Luminus SST-40, does anyone have a comparison of the two?

[Enderman]

Yeah, but OP specifically said “no dedoming”
Yes a dedomed XP-L2 or SST40 will perform better.

[light.speed]

Yeah, I've changed my mind now. I don't really mind the tint so that is no longer a problemo. Do you know which would get higher lux dedomed? I'm leaning on the SST-40 due to higher lumen output, but maybe I'm missing something

[Enderman]

Are you still interested in cree LEDs only?
Because the black flat is still the best from Osram.
dedomed SST40 would be a good option if you want more lumens and still great throw.

[light.speed]

Not just interested in Cree anymore. Haven't been able to find any lumen numbers on the Black Flat so I'll probably pass on it. The SST40 seems good but I might just wait until there are some tests on the XP-L2 before I decide, I'm in no hurry.

[Enderman]

The black flat does about 800-900lm near max.
IIRC the SST40 has higher intensity than the XP L2 dedomed.

XP-L2 V5 Output & Death test by Texas_Ace Over 2200 lumens! Still worked after 15 Amps!

Ok, this is the first official release of an LED test from my setup. I have a few others already complete that I will be releasing as I get the time to make the charts all pretty and ready for upload. Cliff notes version - My sphere and setup is finally calibrated to a level that I feel good about releasing numbers from - I figured out how to turn a PVC sphere into a true integrating sphere that reads the lumen value directly on the lux meter so no math is involved - The lumen readings line …

LED test / review - Cree XLamp XP-L2 V5 40E & U6 40H 90 CRI – High light flux and low Vf, but very huge spread in performance

LED test / review EN Cree XLamp XP-L2 XPLBWT-00-0000-000BV540E (4000 K 70 CRI) XPLBWT-00-0000-000UU640H (4000 K 90 CRI) In September 2016, Cree released the next generation of XP-L, the XP-L2. The manufacturer claims that lumen density, voltage characteristics and reliability has to be improved. August 2017 I tested this LED already, you can find this outdated test in the german TLF. This test is different from my first test in the TLF. My measurements are more ac…

Luminus SST-40, a N4 BA bin tested

[image] [image] I did not test a Luminus led before. The SST-40 is new, cheap for a Luminus led and has the XM-footprint so a DTP copper board for it is readily available. The specifications are also very similar to a XM-L2 led, but it is always the question what will happen when we go out of specs! The led that is tested was bought from Kaidomain, the output bin is N4, which is not the highest bin listed, the tint bin is BA which is just above 6500K. The test was done like all my …

LED test / review – Luminus SST-40-W Specialty White N4 BA (+ dedomed) – Here it is, the next gen XM-L2!

LED-Test EN Luminus SST-40-W Specialty White LED SST-40-CW-A120 UPDATE --- 06/23/18 --- raw data added! (link) This is the english version of my first test (August 2017). Because of more accurate results and some minor changes in the text the german version is no longer valid anymore! I bought this emitter at Kaidomain several months ago. Technical data Tj 85 °C, If 700 mA Order code: SST-40-CW-A120 (unless otherwise specified) Type: single…

[light.speed]

I can't thank you enough!

[Enderman]

:+1: yw

[EasyB]

@Enderman

Yeah, but OP specifically said “no dedoming”
Yes a dedomed XP-L2 or SST40 will perform better.

Dedomed XPL2 is not a good performer. In the test you linked above it has a max luminance of only 125 cd/mm^2.

[Barkuti]

Some driver suggestions:

https://www.aliexpress.com/item/5A-DC-To-DC-CC-CV-Lithium-Battery-Step-Down-Module-Charging-Board-LED-Power-Converter/32799532951.html This XL4015 buck module was recommended above, though here is at the right price.

https://www.aliexpress.com/item/LM2577-Automatic-Boost-Buck-Converter-4-35V-to-1-25-25V-CC-CV-Voltage-Regulator/32692428892.html This one is XL6009 based, buck/boost so more flexible.

For driving the emitter via a 5V supply, take a look at this flashlight driver: LD29 @ lygte-info.dk

Available at FastTech ($5.31 with BLF coupon).

Cheers ^:)