[Lab] smt low and high power LEDs - brightness

[Andrew O'Malley]

The first LEDs describe sound more like they're intended as
indicator/status lights, as opposed to latter which would be more suited to
ambient or task lighting.   Depends if the fixture is going to be
decorative or actually be used to give off useable light to replace other
general light sources.

Working from LED specs alone is tricky, I'd suggest you order a few samples
to see how they look in person.

You probably will need to follow the heatsink guidelines for the larger
LEDs, there should be info about the requirements in the datasheet.

Cheers,
Andrew

Message: 1
> Date: Fri, 22 Mar 2013 13:07:55 -0400
> From: Kyle Chisholm <kyle.chisholm2 at gmail.com>
> To: lab at artengine.ca
> Subject: [Lab] smt low and high power LEDs - brightness
> Message-ID: <72D82AB4-1F7C-497F-9989-F4799F16CD79 at gmail.com>
> Content-Type: text/plain; charset="us-ascii"
>
> Hello,
> I'm working on making a cool light fixture with an array of LEDs mounted
> on pcb and I'm wondering if anyone can tell me what type of brightness I
> can expect from medium/low powered LED (0.06W, 6.8 lumens typical luminous
> flux) versus high power LEDs (0.5W, 39 lumens OR 1W, 105 lumens)?
> If I have an array of 4 or 36 LEDs, for example, how might that compare to
> 60W or 100W bulb(s)?
> Also the high powered LEDs have slugs and I'm wondering what is necessary
> for heat dissipation - do I really really need a heatsink for 0.5W or 1W
> LEDs?
>
> I'm referring specifically to Everlight Optoelectronic components:
> low mid-power
>
> high power
>
>
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