Here are some lumen per watt (LPW) targets for common LEDs
Ledrise - High Performance Led Lighting Luminous Efficacy and Useful Lumens: A Comprehensive Guide to Efficient Lighting Design
LED Lighting - Watts vs. Lumens
Lumen to Watt Comparison - Energy vs Brightness
How To Determine How Many LED Lumens You'll Need To Properly Light Your Space | ArchDaily
How to Convert Lumens to Watts? -
Inside Innovation: Philips breaks 200 lumens per watt barrier
lumens per watts, for LED lamps, Gooseneck LED lamp, LED lamps
How to Convert Lumens to Watts? -
Ledrise - High Performance Led Lighting Luminous Efficacy and Useful Lumens: A Comprehensive Guide to Efficient Lighting Design
:max_bytes(150000):strip_icc()/phillps-5b0fd9a921504c6b8b7bff82e7e06edb.jpg "US Government to Crank Lightbulb Efficiency Up to 120 Lumens Per Watt")
US Government to Crank Lightbulb Efficiency Up to 120 Lumens Per Watt
White LED lights with 135 Lumens per Watt About Ten Times Better than Incandescent | NextBigFuture.com
Lumens to Watts Conversion Chart for LED Bulbs
Lumens to Watts Conversion Chart for LED Bulbs
Commercial Electric 4 ft. White Integrated LED Strip Light Fixture at 2100 Lumens, 4000K Bright White (2-Pack) WS-S03A20A1-40 - The Home Depot
TAM ENERGY
Lumens to Watts Conversion Chart for LED Bulbs
Converting from Traditional to LED Lighting | Blog | Commercial Lighting
Colour Temperature, Colour Rendering and Lumen Efficiency - TheGreenAge
Lumens per Watt & LED Efficacy - Aurora Lighting Presents - YouTube
Details of the 200lm/W TLED Lighting Technology Breakthrough Unraveled — LED professional - LED Lighting Technology, Application Magazine
How do lumens relate to watts on an LED light? - Quora
Luminous Efficacy | JDRM Engineering, Inc.
