What energy efficient bulb could replace a recessed halogen flood lamp?
Question: Is there a more energy efficient bulb than a halogen flood lamp I could use to light my kitchen in Washington State? Answer: Halogen lights, just as regular incandescent lightbulbs, let electricity flow though a filament which in turn heats up so much that it starts glowing. Most of the energy used is therefore turned into heat rather than light. The other two main technologies to create light in residential applications are fluorescent and LED. Both are somewhat similar in efficiency compared to traditional and halogen bulbs.