Brightest LED at ~1-3ma current on 3.6v or less?
-
I know that there have been a lot of LED advances by CREE and others, but I haven't really tracked it. I'm looking for an LED that has an excellent lumen-to-current ratio. Any leads or suggestions? It would be for nighttime illumination, and I want to control it wirelessly.
-
Well, after looking into it, it appears that brightness is very much proportional to current. Even a very modest brightness of 7.5 lumen will require at least 20ma at 3v: https://www.digikey.com/product-detail/en/wurth-electronics-inc/158301240/732-5660-1-ND/4947878
-
@NeverDie for a theoretical maximum, check out https://physics.stackexchange.com/questions/880/how-many-photons-per-second-is-one-lumen
A perfect led would convert all the electrical energy into photons of your chosen wavelength(s). Seems like leds are only able to convert about 10% though.
-
@mfalkvidd > Seems like leds are only able to convert about 10% though.
10% !! What a bummer. For being so efficient, can you imaging how low power the next step in lighting will be?
Time to invent the next version of LED.
Suggested Topics
-
Over the air updates
General Discussion • 23 Mar 2014, 21:38 • ToSa 1 Mar 2015, 11:21 -
Does MySensors require Arduino Timer 2?
Hardware • 6 Jan 2024, 19:39 • OldSurferDude 11 Jan 2024, 04:39 -
"Remote Irrigation with LoRaWAN: LM27313 Challenges and PCB Design"
Hardware • 24 Jan 2024, 23:06 • wrendral 3 Feb 2024, 07:13 -
Best VOC sensor for detecting a wide range of VOC's?
Hardware • 26 Oct 2023, 23:59 • NeverDie 18 Nov 2023, 01:41 -
Newbie questions
Hardware • 14 Feb 2025, 20:03 • magwas 14 Feb 2025, 20:03 -
hlk-pm01 are to noisy for rfm69?
Hardware • 5 Aug 2023, 21:16 • Tmaster 9 Aug 2023, 16:28
