Which type of lighting typically produces the highest energy efficiency?

LED bulbs typically produce the highest energy efficiency among the options listed. They use a semiconductor to convert electricity into light, resulting in significantly less energy wastage compared to other types of bulbs. LEDs can achieve efficiencies of up to 80-90%, meaning they convert a large portion of the electricity they consume into visible light rather than heat.

In comparison, incandescent bulbs are known for their low efficiency, with a significant amount of energy being lost as heat. Halogen bulbs offer somewhat better efficiency than traditional incandescent bulbs but still fall short of the efficiency provided by LEDs. Compact fluorescent lamps (CFLs) are more energy-efficient than incandescent and halogen bulbs, but they do not reach the performance levels of LEDs. Therefore, for those seeking to minimize energy consumption while maximizing light output, LED bulbs are the optimal choice.