I originally bought a set of fog lights for my car. They were 2, 55 watt fog lights which are connected to a remote control box for control from a wireless remote. This system came wired to a 15 amp fuse. I recently purchased another pair of lights and I spliced them into the wiring of the older set of fog lights. After wiring everything together, the lights would work for about 10 minutes while the car was on, and then shut off. I discovered that the fuse blew out and so I replaced it with another 15 amp fuse I have. Of course that blew out too. I'm assuming that because there are 2 more lights, both 55 watt each that there needs to be a stronger fuse. Does it make sense to just get a 30 amp fuse to compensate for the extra wattage or do I need a stronger one?
OK you've got 4 times 55 watts, thats 220 watts total. To find the amps divide by 12 volts, thats 18.3. So you round up to the next convenient size, and add a bit to take care of turn-on surge. 25 amps should work perfect.
Hope this helps.
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