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Homemade LED Flashlight

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Topic review
   

Expand view Topic review: Homemade LED Flashlight

by solacedagony » Fri Jun 06, 2008 3:19 pm

colemanyoungerinalaska wrote:casting resin might work
Never used resin or anything before. I also want to keep this relatively low budget. If you have a link or something though, please do send.

by solacedagony » Fri Jun 06, 2008 3:18 pm

Chris from Washington wrote:I think it would be better if the LED itself can be encased in something too. The little legs on the LEDs can bend easy. Plus you don't want them getting wet or anything.
Yea, I definitely am looking for project tubes or something. Haven't come across anything yet though.

Is it possible to estimate the time of battery usage based on milliamp rating and battery?

by colemanyoungerinalaska » Fri Jun 06, 2008 9:18 am

casting resin might work

by Chris from Washington » Fri Jun 06, 2008 6:10 am

I think it would be better if the LED itself can be encased in something too. The little legs on the LEDs can bend easy. Plus you don't want them getting wet or anything.

by solacedagony » Fri Jun 06, 2008 3:40 am

Chris from Washington wrote:Actually looking at what you want to do, you most likely want a LED that has a narrow beam to it.

Supeflux's usually have a wider beam 120 degrees. You could most likely just get away with using some cheapy LEDs on ebay that have a 20 degree rating.
Yea, the narrow beam is certainly better than a wider one in this case. How tough are these things? Can they get bounced around a bit without breaking?

by Chris from Washington » Thu Jun 05, 2008 1:49 pm

Actually looking at what you want to do, you most likely want a LED that has a narrow beam to it.

Supeflux's usually have a wider beam 120 degrees. You could most likely just get away with using some cheapy LEDs on ebay that have a 20 degree rating.

by Chris from Washington » Thu Jun 05, 2008 1:48 pm

solacedagony wrote:What exactly is "superflux"? Meaning current usage, light dispersion, etc?
superflux is a case style of LEDs. They are the ones in a square package that have the 4 legs, they are what are used in auto OEM applications. The 4 legs add stablity to the LED, plus also help in heat dispersion.

On Ebay you can find a white superflux ‘style’ 5 chip LED that has a 100ma rating.
That is what I used in my reverse lights on the Camaro and they are bright!!!!!

Normal LEDs are usually called 3mm, 5mm, 8mm etc. These will have 2 legs.

by solacedagony » Tue Jun 03, 2008 3:21 pm

What exactly is "superflux"? Meaning current usage, light dispersion, etc?

by Chris from Washington » Tue Jun 03, 2008 2:24 pm

I'll take a look at your link in the next few days, I'm just heading out the door out of town for a couple days.

True superflux LEDs will come in red or amber for sure. You can get knock offs in pretty much any color, but just make sure they are actually 70ma versions. Many of the ebay ones are only 20ma.

True Superflux are made my lumileds.

by solacedagony » Tue Jun 03, 2008 12:33 pm

Here's a link for exactly what I'm trying to do and what I'm trying to do it for.
http://www.instructables.com/id/LED-Lig ... -light-do/

Are NTE LEDs that these people are using any good? I want to do the same idea, but made to be tougher since we're going to be using them outside, possibly getting stepped on, among other things.

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