Yep x100. At least as I understand it, ohms law does apply. It just doesn't appear that way at first due to the filament changing resistance. It gets a voltage, reaches temp and resistance stabilizes. Current will vary through that warmup process according to ohms law. Current will start high because resistance starts low. If there are voltage losses in the circuit, they are a different matter. As Bill said, it is all about what the filament sees. So first we need to be sure the system is producing enough voltage. Then improve connections to minimize losses. But if the connections are perfect and the wire is too small the filament sees the voltage and asks for more current than the wire can give we just heat up everything but the bulb and still don't get the light output. Your trying to push a golf ball through a garden hose, and everyone knows that requires suction. :D