You are deciding whether to light a new factory using bulb a, bulb b, or bulb c.

which bulb would be better to use on the factory floor?

which bulb would be better to use in the break room?

amount of energy the lights use is measured in units of kilowatt-hours. a kilowatt-hour is the amount of energy needed to provide 1000 watts of power for 1 hour.

what do you know
what do you want to find out
what kind of answer did you expect