Semiconductor-based LEDs have reduced electricity consumption for lighting by a factor of five compared to incandescent bulbs.
Notes on verification
Confirmed by CNRS source and corroborated by French parliamentary/ADEME data and industry sources; exact multiplier varies (4x-7x) depending on bulb comparison, but 'factor of five' is a commonly cited, reasonable rounded figure. [tier=bronze indep_score=0.525 clusters=3 claim_tier=notable | framework convergence=partial (upstreams: U.S. Department of Energy lighting efficiency data, ADEME (French Agency for Ecological Transition), International Energy Agency) — 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.assemblee-nationale.fr/dyn/12/questions/QANR5L12QE64640.pdf (corroboration)
- https://www.totalenergies.fr/particuliers/parlons-energie/dossiers-energie/economie-d-energie/economie-d-energie-zoom-sur-la-consommation-des-ampoules (corroboration)
- https://www.picknrg.com/en/resource-center/led-lightbulb-energy-consumption/ (corroboration)