Semiconductor-based LEDs have reduced electricity consumption for lighting by a factor of five compared to incandescent bulbs.
Notes on verification
DOE and ENERGY STAR confirm LEDs use roughly 75-80% less energy than incandescents, which corresponds to a 4x-5x efficiency improvement. The 'factor of five' figure is at the high end of commonly cited ranges but consistent with typical lumen/watt comparisons. [tier=silver indep_score=0.77 clusters=2 claim_tier=everyday | framework convergence=partial on DOE/ENERGY STAR lighting efficiency standards and lumens-per-watt measurements (upstreams: U.S. Department of Energy, ENERGY STAR) — publishers independent, evidence may not be | kind=empirical eligibility=medium]
Sources
- L’électroluminescence du graphène, une découverte inattendue (seed:science_and_space)
- https://www.energy.gov/energysaver/led-lighting (corroboration)
- https://www.energystar.gov/products/light_bulbs (corroboration)