The extent of my knowledge about running led lights at 6 volts rather than 12 volts is that the light will draw less amperage and subsequently put out less light than when the light is ran at 12 volts.
12 volt led on 6 volt system.
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6 volt positive ground for vintage and classic vehicles.
Plug in the values.
1129 led bulb 6 to 24 volt 13 smd product code.
Changing to 12 volts cuts the amperage load approximately in half.
R 14 3 0 02 r 450 ohms.
Led bulbs are a great way to save power and super easy to install.
To find the value of a resistor for an led to be used in a car we must take the highest possible voltage which is 14 volts.
This is because it s heavier because 6 volts has to carry more amperage than 12 volts.
With an incandescent bulb light output and voltage do not have a linear relationship.
When operated at 1 2 the designed voltage a 12v bulb will not just be 1 2 as bright but will be many times dimmer.
You can t put a 12v bulb on a 6v tail light the bulb will be barely visible at night and invisible during the day.
So for an led that needs 3 volts and 20 ma you will need a 450 ohm.
I contacted the manufacturer of this light to see if running the light on a 6 volt system would damage the light or reduce life expectancy.
Wiring two 6 volt devices in series reduces the voltage from the battery by half so each device gets 6 volts.
It only needs to be about 12 inches long.
A 12 volt incandescent bulb can be used with a 6 volt battery but the lumen output will be slightly less than half.
A 6 volt wiring system and switches are more than enough to handle 12 volts.
Cut one strip of awg 18 gauge wire using a knife.
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The average led current is 20 miliamps or 0 02 amps.
Less volts means more amperage.
You use this wire to connect between the 12 volt battery and the 6 volt light bulb to switch the power to 6 volts.
Better to use a 6 volt bulb or two 6 volt batteries in series.
For led lights the difference in light output may not be as dramatic as it is with incandescent bulbs but it will not work as well.