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
-
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.
-
@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.:sun_with_face:
Hello! It looks like you're interested in this conversation, but you don't have an account yet.
Getting fed up of having to scroll through the same posts each visit? When you register for an account, you'll always come back to exactly where you were before, and choose to be notified of new replies (either via email, or push notification). You'll also be able to save bookmarks and upvote posts to show your appreciation to other community members.
With your input, this post could be even better 💗
Register Login