Sold/Expired WANTED Custom LED bicycle taillight

Bikecop · Feb 23, 2004

Have any of you modders built a red flashing LED tail light for a bicycle?? I would be interested in something using AA batteries with brightness approaching one of Charlies' LGI's. I have a couple of flashers with multiple LED's that can be cannibalized for their flasher units, if needed.... /ubbthreads/images/graemlins/help.gif

kitelights · Feb 24, 2004

The LGI's use a one watt Luxeon Star while the flashers use 3mm or 5mm LEDs. I have a couple that I use when I'm riding and get caught out in the dark. I see other bikers using them when I'm driving my car and they are very visible - almost to the point of distraction.

I actually think that it would dangerous to use that bright of a rear facing light. It could be blinding to drivers following and approaching from behind.

TheFire · Feb 25, 2004

I'd be willing to give it a shot. How important is battery life vs. brightness. It might be good to use a downboy sandwich module, and use the flasher in conjunction with that. PM me if you're interested and want to discuss things more...

Nerd · Apr 22, 2004

I've just build a white 4 LD 1 watt LS 4AA driven LS with some blinker circuit cannibalized from a 2AA red blinking tail light. Pics will be up hopefuly by tomorrow, 24 hours from now. To say that this attracts attention, is like saying the Super LGI is very dim. /ubbthreads/images/graemlins/grin.gif

And before anyone ask, I've not caused any road traffic accidents with this, yet. /ubbthreads/images/graemlins/grin.gif

INRETECH · Apr 22, 2004

The blinker circuit from the normal tail light might not have the current needed to drive the Luxeons directly

Nerd · Apr 22, 2004

I measured a 300++ ma at normal (no blinking) and a very fast changing peak of 300ma to 1.2 amps at blinking mode. Hence the 4AA needed to push the current to that level, 3AAs would have not powered it up to 1.2 amps. I wonder why though.

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Sold/Expired WANTED Custom LED bicycle taillight

Bikecop

Newly Enlightened

kitelights

Flashlight Enthusiast

TheFire

Enlightened

Nerd

Flashlight Enthusiast

INRETECH

Flashlight Enthusiast

Nerd

Flashlight Enthusiast

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