Attention flashers from LED flashlights ?
- Thread starter Luka
- Start date
I thought that was the case, as well.
But I have seen motorcycles here, with the 'wig-wag' lights. And even a flashing headlight.
Guess I'd better figure out where to find what the law is, in washington state.
Thank you.
loquin
Well-Known Member
You're correct about the alternately flashing lights. You could probably be ticketed for it. I came up with the first version of this circuit for an uncle, who was a volunteer fireman in VA. He was only entitled to use the lights wired up as a wigwag flasher when he was responding to a fire.
Scotchmo
Member
Use a switch to supply power to two bulbs and an automotive flasher. The flasher powers an automotive NC/NO relay. One light is grounded through the NC side of the relay. The other light is grounded through the NO side of the relay. The turn signal flasher powers the relay on and off which in turn alternates the two lights hooked to the relay. It would work with LEDs or incandescent lights.
That sounds easy enough !
=0)
Is this an nc/no relay, like you suggest ?
This is a turn signal relay. Some have three tabs.
Could you give me a 'coloring book easy' picture, of what gets connected, where ?
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Scotchmo
Member
That relay is incorrect. It is a SP (NO) relay. You need a SPDT (NO/NC) relay. Try this or one like it:
Go to waytekwire.com and look for part # 75602
Many light housings are grounded so it is better to use the relay to control the +12v feed rather than the ground connection that I first proposed.
I included a diagram that should work. There will be an additional terminal (87a) on the SPDT relay.
You could run bulb 1 directly off the flasher as shown in the second diagram below. That would provide a larger load that some flashers might require. Terminal 87 would not even be used.
Go to waytekwire.com and look for part # 75602
Many light housings are grounded so it is better to use the relay to control the +12v feed rather than the ground connection that I first proposed.
I included a diagram that should work. There will be an additional terminal (87a) on the SPDT relay.
You could run bulb 1 directly off the flasher as shown in the second diagram below. That would provide a larger load that some flashers might require. Terminal 87 would not even be used.
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Great !!
Thank you very much.
One last question:
Is this the same animal ? (Looks like it to me.)
http://shop.oreillyauto.com/ProductDetail.aspx?MfrCode=SMP&MfrPartNumber=RY115&PartType=597&PTSet=A
It's part #RY115
I'm hoping this is right, because I can just go pick one up at the local schucks auto parts place.
It has all the same numbers on it.
Only problem I can see is that the numbers may be on the side, but I don't think the numbers are on the bottom, next to each individual terminal.
Can you tell from that pic, what the numbers would be on each terminal ?
I hate being a pain in the butt. I hope this isn't too much hassle.
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Scotchmo
Member
That relay will work.
Very cool.
I just might actually try this !!
=0)
Can you tell what number goes to each terminal on the bottom ?
And thank you very much again.
Scotchmo
Member
I can't see the numbers on the bottom. It should be labeled or come with documentation. If not, you can figure it out using an ohmmeter.
Some automotive flashers require a higher minimum load than that SPDT relay or LED will provide. If you use that flasher you may have to put a resistor across 85 and 86 of the relay.
If you use automotive 1156 type bulbs and wire it according to the second diagram, any flasher should work. Otherwise use a flasher designed for LEDs or a load resistor.
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