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 both confirm LEDs use roughly 75-80% less energy than incandescents for equivalent light output, corresponding to a ~4-5x efficiency improvement. 'Factor of five' is a reasonable rounding within cited ranges. [tier=silver indep_score=0.77 clusters=2 claim_tier=notable | framework convergence=partial on standardized lumens-per-watt efficacy testing used by DOE/ENERGY STAR (upstreams: US Department of Energy (DOE), ENERGY STAR) — publishers independent, evidence may not be | kind=empirical eligibility=high (extractor: empirical/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/lighting_fans/light_bulbs/learn_about_led_bulbs (corroboration)