thank you all very much for the info, this is exactly the kind of stuff i was looking for. i posted ona few other lighting specific forums and got absolutely nothing. appreciate all the help and advice. you just made my job alot easier.
well, here is my thoughts. i have a set of non functional vents on the quarter panel of my car. asthetically they are nice, but i would like to make them have a function. my thought was to set up a small led array behind each one (orange in color) and use them as a side parking/turn signal indicator. looking at the links i got some great info, including how i could create just a park light, but how could i turn it on and off with the blinkers? optimaly, i would like to change the intensity of the lights to indicate a turn. i read in a few places about 555 chips, but i dont know what they are or how to use them. any more ideas or links? like i said i appreciate all of the help!
Not the ones I've seen. Transformers increase cost. . .
That part is true, http://66.102.7.104/search?q=cache:A7dE6OHLIB0J:
What is confusing about "Do NOT wire LEDS in parallel." ? I am not implying that non-current limited LED's should not be paralleled, I am stating it, forcefully: Do NOT wire LEDS in parallel.
Wrong. Do NOT wire LEDS in parallel.
Ed
Find the + and - wires wire that connect to the existing turn signal bulb, and the + and 1 wires that connect to the running light bulb. You can connect them directly to the two identical circuits below that you will build that feed your led array(s).
From Turn Bulb + ---[R1]---+-----+--- To LED Array TURN+ | | [TVS] [C1] | | From Turn Bulb - ----------+-----+--- To LED Array TURN-
From Running Bulb + ---[R2]---+-----+--- To LED Array DIM+ | | [TVS] [C2] | | From Running Bulb - ----------+-----+--- To LED Array DIM-
LED Array:
D1 D2 From TURN+ ---[Rled]--->|----+---|
They've invented bulbs that fail with a short circuit for that purpose, you get a string of series wired christmas lights with 39 fail-short bulbs and one (regular) fail open "fuse" bulb to stop a cascade failure from starting a fire.
the fail short bulbs seem to have somethin wrapped around the terminal wires inside the envelope, I'm guessing it's some sort of wire with poor insulation that the mains voltage can punch through if the filament fails.
Bye. Jasen
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