Ok so I have a flashlight that is 19.2 volts. It used to have a bulb that was 19.2 volts and .6 amps, but I broke it, and couldn't find a replacement, so I decided to try to use an LED and a resistor. The LED is 20 mA (.02 Amps) and 3.5 Volts. If I am correct, to find the resistor I need I would use:(adsbygoogle = window.adsbygoogle || []).push({});

(Vsupply - Vneeded) / Ineeded = Resistance

So

(19.2V - 3.5V) / .02A = 785 Ohms (or 800 to round up for safety)

Is this right? Thanks

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# Need help converting flashlight bulb to LED

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