LED vs. CFL Bulbs: Which Is More Energy-Efficient?
LED Lighting Efficiency | How Energy Efficient are LED bulbs
LED lighting efficacy: Status and directions - ScienceDirect
Ultra efficient | Philips lighting
Household savings: LED bulbs gaining in cost efficiency
White LEDs with super-high luminous efficacy could satisfy all general lighting needs
TAM ENERGY
Compact fluorescent lamp - Wikipedia
Campus-wide Lighting Retrofits Save Time and Energy | Campus Planning & Operations
Ledrise - High Performance Led Lighting The ABCs of LED energy efficencty
Luminous efficacy - Wikipedia
Is it time to throw the switch on LED Lighting? | HEP Sales
The Next Frontier for Eco-Efficient Lighting Reached as LED Technology Advances Further - United for Efficiency
LED Technologies: How it Revolutionized the World
America's Light Bulb Revolution - The New York Times
20W 3000lm A21 LED Light Bulb 5000K Daylight Efficient Workspace Home LED Lamp 6974466754170 | eBay
Find Energy Efficient Lights | Clean Energy Resource Teams
LED vs. regular lightbulbs: Do they really make a difference?
Efficient LED lighting systems - Save energy with TRILUX
Swap Your Conventional Light Bulbs for LEDs at No Charge! | Sustainability | Washington University in St. Louis
Maine Residential Energy Efficient Lighting Solutions | Efficiency Maine
LEDinside: LED Light Bulbs Evaluation (40W Incandescent Light Bulbs)- Luminous Flux - LEDinside
LED Lighting Efficiency Jumps Roughly 50% Since 2012
