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How To Connect 3v Led To 12v Battery. I want to connect 4 10mm led to 12v bike battery in parallel. 33v 33v LED how to connect 12V series circuit how to calculate led se.
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You need a module calle. That mounts up to an impressive 135 amps. Some will be 28V some will be 3V and some will be 32V or even a wider voltage range.
But that same 12V battery wired to four 3V LEDs in parallel would deliver the full 12V to each LED - enough to burn out the LEDs for sure.
So the res. When you are operating an LED with 3V you have to use minimum 10 ohms resistor. I am trying to power a 12V fan and a 3V LED with a 9V battery but I do not know where to begin. Hence R 500 ohms so you need a 500ohm resistor in series with the LED be aware that LEDs have and.
