Here are some lumen per watt (LPW) targets for common LEDs
What are Lumens? | Integral LED
36 Watt LED Corn Bulb - Aries III Series - 4,900 Lumens - 50
LED trends: more lumens per watt
GE Lighting LED Standard Light Bulbs, 10 Watts (60 Watt Equivalent) Daylight, Medium Base, Dimmable (4 Pack) - - Amazon.com
Luminous Efficacy | JDRM Engineering, Inc.
GE Soft White 75W Replacement LED Indoor General Purpose Non-Dimmable A19 Light Bulb (4-Pack)
led - What is the theoretical limit of lumen/watt for lighting systems? - Electrical Engineering Stack Exchange
Details of the 200lm/W TLED Lighting Technology Breakthrough Unraveled — LED professional - LED Lighting Technology, Application Magazine
Optics & Photonics News - The Quest for Lumens per Watt
Lumen to Watt Comparison - Energy vs Brightness
LEC Expert blog - Thoughts and expert solutions in LEDs
Feit Electric 3597291 3 watt 25 watt Equivalence A15 200 Lumen A-Line LED Bulb, Soft White - Pack of 2 - Walmart.com
New XLamp® CMB LEDs Deliver High Lumen Density & More Lumens Per Watt - Cree LED
How is lumens per watt calculated? - Quora
How to Convert Lumens to Watts? -
GE Relax LED Light Bulbs, 60 Watt Eqv, Soft White HD Light, Decorative Bulbs, Small Base (8 Pack)
GE Relax LED Light Bulbs, 60 Watt Eqv, Soft White, A19 General Purpose, 4pk - Walmart.com
LED Lumens To Watts Conversion Chart - The Lightbulb Co. UK
LEC Expert blog - Thoughts and expert solutions in LEDs
TAM ENERGY
Lumens to Watts Conversion Chart for LED Bulbs
Why LED lights are better than Fluorescent lights even when lumens per watts are the same - Bijli Bachao : Bijli Bachao
HID vs. LED Grow Light Comparison - California LightWorks
Lumens per Watt & LED Efficacy - Aurora Lighting Presents - YouTube
