High Tower is a company that occupies several office buildings. It is considering installing energy-saving light bulbs in all of its buildings. This new light bulb emits as much light as the traditional light bulbs currently in use, and the electricity required is only half of the traditional bulb. The life of this new bulb is also greatly extended
If this kind of light bulb is widely adopted, it is very likely that the production of new light bulbs will be greatly increased, so that its price will be comparable to those of traditional light bulbs.
by replacing the old bulb with this new bulb when the old bulb is broken, High Tower can greatly reduce its overall lighting cost.