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Subject: rear stop/tail light in led's

Date: 10/15/02 at 11:57 AM
Posted by: toot
E-mail: toot@toot99.freeserve.co.uk
Message Posted:

i'm no electronic engineer, so bear with me.
I'm trying to build a rear light using led's, but need help. I'm trying to run 34 red, 1.85v, 1000 mcd and 60 degree veiw angle on a 12v system. so i am running in batches of 7 so no resistors are needed to run on the 12v, right or wrong???
Thats the easy part, what i want to do now is use each led for a tail light (half brightness) and also a stop light (full brightness). I assume that running a strong enough resistor in line will make the led dimmer but how do i connect the brake switch circuit into the same line to make the led brighter when braking??
help !!!!!!!!!!!

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