Here are some lumen per watt (LPW) targets for common LEDs
Exposing the LED Lumens Per Watt Loophole: Why High LPW Means Sacrificing Fixture Performance -
Lumens Calculator: How Many Lumens Do I Need for a Room? – Insights
Announcing the Industry's Highest Lumens Per Watt Exterior LED Site Lighter – DCA Partners
New XLamp® CMB LEDs Deliver High Lumen Density & More Lumens Per Watt - Cree LED
Samsung Achieves 220 Lumens per Watt with New Mid-Power LED Package — LED professional - LED Lighting Technology, Application Magazine
What will the highest-lumen per watt figure be for LED? What is the highest theoretically possible? - Quora
White LED lights with 135 Lumens per Watt About Ten Times Better than Incandescent | NextBigFuture.com
Why LED lights are better than Fluorescent lights even when lumens per watts are the same - Bijli Bachao : Bijli Bachao
How is lumens per watt calculated? - Quora
Ledrise - High Performance Led Lighting LED luminous efficacy (lumens per watt) explained
World's Highest 200 lm/W (Luminous Efficacy) LED Flood Lights - LedsMaster LED Lighting
LED Lumens To Watts Conversion Chart - The Lightbulb Co. UK
Lumens per watt plot with trend lines for LED Lights with bulb. | Download Scientific Diagram
Wattage vs Lumens: Know the Difference for Better Lighting
Lumen to Watt Comparison - Energy vs Brightness
LEC Expert blog - Thoughts and expert solutions in LEDs
Ledrise - High Performance Led Lighting LED luminous efficacy (lumens per watt) explained
Light Bulb Brightness - The Home Depot
How much light is a lumen: 5 great points to help you find the right LED lighting
LED High Bay Guide | What You Need to Know
New XLamp® CMB LEDs Deliver High Lumen Density & More Lumens Per Watt - Cree LED
led - What is the theoretical limit of lumen/watt for lighting systems? - Electrical Engineering Stack Exchange
Don't Be Fool while selecting Best LED Lights – LED lights in India
LeVanier 100W 16000Lm UFO LED High Bay 160 Lumens Per Watt Dimmable 5Ft Cable IP65 ETL/cETL DLC Day Light 5000K Warehouse Workshop Gym Stadium Commercial (100W 16000Lm) - - Amazon.com
What is the conversion formula from watt to lumen? - Quora
What is the real Lumen of a LED bulb? Looking at the numbers.
