LED WARNING!!!

[ChuckE]

By the way, probably one of the best solutions is to do just as "Boar-Ral" did, and that was to hide the actual, existing bulb somewhere in the enclosure to be out of sight.

That way you can forget about trying to calculate how much resistance and wattage of a resistor is needed. The load of the LED assembly is much lower and should not affect the circuit otherwise, so additional fuse power concerns are not an issue.

Since the bulb is still in the circuit, it will still consume and dissipate the bulk of the power. It will still get hot, as any filament light bulb does. So be sure that wherever you place it, it can handle the build up of heat. So don't place it against a piece of plastic, unless you can cushion it with some heat resistant material (which would help in keeping the light from emanating out, also).