60 Watts/12 Volts = 5 Amps
not sure what size alternator your vehicle has, but this is likely a low % of the output. though i will use my saying here of "a lot of rain drops make a puddle". very small effect on fuel consumption, not likely you'd even be able to calculate it from what i can tell. But i will say, that's a lot of watts just to light up the tiny area, i'm about to put a couple LED rings into my dash to light up the cluster
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