brake light brightness

[Kyle Walther]

how bright is too bright?
http://www.sae.ou.edu/images/06/mattbrakelight.jpg

what he saw through the welding helmet

http://www.sae.ou.edu/images/06/brakelight.jpg

[Kyle Walther]

how bright is too bright?
http://www.sae.ou.edu/images/06/mattbrakelight.jpg

what he saw through the welding helmet

http://www.sae.ou.edu/images/06/brakelight.jpg

[Bill Kunst]

Quick ?
Were you wearing the welding helmet to avoid flashburn?

Nice tail lite, but I am worried that the drivers behind you will be able to see it through their squinting eye lids.

[absolutepressure]

Throw a couple resistors on that beast. I don't know what voltage you're running, but most operate at 1.5V and burn out at like 3 V. The ones i've used anyway.

[drivetrainUW-Platt]

I have been itchin to post this up.....
Brake Light Testing 2006
the test rig

Specs:
Thrift store cost: $0.50
Origional color: Pink
Bike name: Sea Princess

http://i22.photobucket.com/albums/b309/duwem/Picture155.jpg

http://i22.photobucket.com/albums/b309/duwem/Picture158.jpg

Half a can of flat black paint and an old generator light: freebie
LED cluster from Walmart, open package, $0.25
riding a girls bike: priceless

http://pg.photos.yahoo.com/ph/uwpformula/detail?.dir=c7...=856are2.jpg&.src=ph (http://pg.photos.yahoo.com/ph/uwpformula/detail?.dir=c703&.dnm=856are2.jpg&.src=ph)

http://pg.photos.yahoo.com/ph/uwpformula/detail?.dir=c7...=cb46re2.jpg&.src=ph (http://pg.photos.yahoo.com/ph/uwpformula/detail?.dir=c703&.dnm=cb46re2.jpg&.src=ph)

[Kyle Walther]

that rig is SWEEEET!

I'll give you a dollar for that sea princess chain guard. That's gonna look soo hot on our new car. I wonder if it meets the rules?

edit- aww you painted it too..=[ i looked on ebay and googled it..no sea princesses(sp)

[Sooner_Electrical]

The light has a resistor array on it, it just happens to be designed for the maximum amount of voltage the LEDS can take before burning out. The plan this year it to be so far ahead of the person behind us that the brightness shouldn't really affect the driver behind us.

[absolutepressure]

<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Sooner_Electrical:
The light has a resistor array on it, it just happens to be designed for the maximum amount of voltage the LEDS can take before burning out. The plan this year it to be so far ahead of the person behind us that the brightness shouldn't really affect the driver behind us. </div></BLOCKQUOTE>

Well, the sun isn't exactly my next door neighbor, and I think it's still pretty bright.

Look at that picture again. Whenever a flat black object reflects so much light that you can no longer tell it's black, you should probably tone it down. (Recall that the black "color" you "see" is not really a color at all, it's the absence of light, so when you see a black helmet and shirt turn red, you know your lights have cajones grandes)