Roger Merchberger wrote:
> I'm looking at building a personal lighting project possibly using white
> LEDs instead of regular miniature bulbs, and as I browsed the Mouser
> catalog, I got a whole lot more confused than less...
>
> I'm trying to get the maximum amount of light for current expended, and
> the numbers seem to be nonstandard, or at least not enough info is
> provided... :-/
>
> Example:
>
> P. 217, "Super Flux LED Lamps"
> The white one shows at 20mA it will put out 400-600 "Iv (mcd)"
> P. 216, "Blue & White LED Lamps"
> The brightest white they have is listed as: "2200->3200
> "Luminous Intensity" but with no mention of current or value
> (mcd? ucd? )
> P. 199, "Thru-Hole White LED Lamps"
> "Luminous Intensity" ? current would output 1.7->2.3->2.6
> (min/typical/max) mcd...
>
>
> and on P. 206, there's a few colored LEDs output listed as "Foot
> Lamberts"...
>
> And Digi-Key has these Surface Mount Incandescent Lamps... :-O The look
> cool, but how hot do they get? (It's a very small installation area...
> It's still an idea I'm forming, but if it works out, it's a *kewl* idea...)
>
> Any good websites w/info on how to figure out how many LEDs I'd need to
> make about a 40W (or more) lightbulb worth of light?
http://www.bgmicro.com/
Check out BGmicro for big leds.
Also I think the blue and white leds are sensitive
to the current and voltage used.
Ben.
Received on Tue Feb 04 2003 - 18:26:00 GMT