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## Main Question or Discussion Point

Lightbulbs are rated in watts. Watts = energy/time = volts*current

Does it matter if you have a very low voltage source with a very high current or a very high voltage with a very low current?

If the voltage and current multiplied meets the power rating, what should it matter what proportion each multiple/property is?

Does it matter if you have a very low voltage source with a very high current or a very high voltage with a very low current?

If the voltage and current multiplied meets the power rating, what should it matter what proportion each multiple/property is?