Discuss. Going in a new staff that I'll be carrying to PlayOnCon.
Discuss. Going in a new staff that I'll be carrying to PlayOnCon.
It's a 48 bulb LED turn signal light, and I need a really small battery setup (it's going in a walking staff) but I was hoping it wouldn't blind people looking at it.
Here's where a 9v/12v switch would be awesome to dazzle my enemies.
Can you use two 9V batteries in series (making 18V, I think), followed by a resistor to drop it to 12?
“Do not trust people like me. I will take you to museums, and parks, and monuments, and kiss you in every beautiful place, so that you can never go back to them without tasting me like blood in your mouth. I will destroy you in the most beautiful way possible, and when I leave you will finally understand why storms are named after people.”
both mdust and blueonblack are correct.
since leds are so light on power, you could also stack a bunch of "watch" batteries in series to get your 12v. you would need 8 of them at 1.5v each. but it would still be smaller than a 9v battery.
“Do not trust people like me. I will take you to museums, and parks, and monuments, and kiss you in every beautiful place, so that you can never go back to them without tasting me like blood in your mouth. I will destroy you in the most beautiful way possible, and when I leave you will finally understand why storms are named after people.”
you could to the two 9v idea, and just use a standard LM-style 12v regulator, easy as pie. Or just hook them up to a single 9v by themselves and see if they'll turn on. they should, albeit just dimmer
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Dimmer is just fine. This bulb has a retinal damage at sub 1 meter warning.