LED turn signals for my scooter

[WS6]

Well I have this idea for doing LED turn signals on my bike. I have a custom design thought out and need some info on wiring. I can wire perfectly fine. I just do not have any experience with wiring LEDs in in this manner. I need to know what the best way is to wire in say 10 to 15 LEDs per turn signal. What resistor values I need and how I go about making them blink like they are supposed to. If anyone has any info I would greatly appreciate it. Thanks.

[shep]

Wire them in parallel, start with a 33 ohm 5 watt resistor for 15 LEDs or 47 ohm 3 watt resistor for 10 LEDs on the positive side if the resistor isn't built in to the LEDs. Go here to calculate the value needed for any other number of LEDs use 20ma for the desired current. http://metku.net/index.html?sect=view&n=1&path=mods/ledcalc/index_eng . Also use LEDs rated for 12 volts unless you are building a voltage regulator into your design. To get them to blink get a 20 ohm 20 watt resistor and wire it from the blinker wire to ground. This gives the blinker enough resistance to work. I just did this on a buddy's bike, the after market LED blinkers he had came with the resistors.

[Madspeed]

Heh and when you wire that resister from your blinker to Gnd lemme know if it now makes them all blink =)
Wink Wink
if it does you will need 2 diodes and 2 resistors to seperate the left and right

My buddy owns a motorcycle shop here in so cal and they were going nuts with this problem after a customer put in her own led turnsignals.
they tried all kinds of different brand resistors made for led lighting. the problem was the bike only had one turn sig indicator and it would pull gnd through the other light and make it blink too

Gl Ken F

[shep]

The one I just did worked with out any extra parts 1 resistor for each side. It is a 03 cbr600rr.

[Madspeed]

Shep this porblem only happens with common turn signal indicator setup not a dual (ie left and right indicators in the dash)