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  • I have made and sold a simulated firefly for 20 years that comprises a 12 volt CPU fan on 2 spun 32 gauge wires, that pulls around a green LED that is 2.2 volts. To get the proper yellow/green hue, I push up the voltage, closer to 3, but right at 3 makes it pure yellow. I need to have it a little less. It's a novelty item, and cannot be comprised of a lot of heavier components.

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  • I am not an electrician, but an artist. I designed the simulated firefly for Disneyland's Pirates of the Caribbean. I have tinkered with a standard green LED, putting 3 volts through it for the desired hue, which becomes more yellow. 3 volts seems too yellow, though, which is why I'm thinking 2 volts might be perfect. My original used 12 volt grain of rice incandescent. I have used 2 C batteries for what I'm looking for, and oddly, some come out more yellow, and others just right. It's just a touch below 3 volts, maybe, to get the mixture of yellow/green.

    I am not an electrician, but an artist. I designed the simulated firefly for Disneyland's Pirates of the Caribbean. I have tinkered with a standard 1.5 volt green LED, putting 3 volts through it for the desired hue, which becomes more yellow. 3 volts seems too yellow, though, which is why I'm thinking 2 volts might be perfect. My original used 12 volt grain of rice incandescent.

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  • I don't know much about electricity, but I need to convert 12 volts to 2 volts, for an LED special effect I'm making. Which resistor would I use?

    I need to take the voltage down from 12v to 2v with a resistor.Which do I use?

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