The LED (Light Emitting Diode) light bulb is the most efficient. They use up to 80% less energy than traditional incandescent bulbs and can last up to 25 times longer. CFLs (Compact Fluorescent Light bulbs) are also efficient, but they contain small amounts of mercury and have a shorter lifespan compared to LED bulbs. Therefore, LED bulbs are the most recommended type of light bulb for energy efficiency and environmental sustainability.
