Quote:
Originally Posted by alvitdk
... A 4 Ohm resistor at 12V will need an resistor of about 40W, but since it is only 50% on, I would think a 30W might be enough.
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Quote:
Originally Posted by wildmark
What does that mean in laymans terms?
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Ignore the volts. He was just using that to calculate wattage. You need to ask for a 4 ohm, 30 watt (more watts is OK) resistor. They will probably get pretty hot, so keep away from stuff that might melt.