Here are some lumen per watt (LPW) targets for common LEDs
LED-Watt-Vergleich: Wie hell sind Ihre Lampen?
LED Strahler E27 R63 9W 760lm Rendering 75W - generalüberholt
Finden Sie die richtigen Leuchtkraft für LED - Umrechnung Watt in Lumen
Lumen: Definition und Erklärung | Lampe Magazin
Duracell 1000-Lumen 3 Modes LED Flashlight (AA Battery Included) in the Flashlights department at Lowes.com
How To Determine How Many LED Lumens You'll Need To Properly Light Your Space | ArchDaily
So hell sind LED Lampen - Alles über Lumen, Lichtstärke und Lichtstrom
30,000 Lumen - 170lm to watt - only 185 Watt LED NextGen XT
What are Lumens? | Integral LED
Was sind Lumen
LED Lumens To Watts Conversion Chart - The Lightbulb Co. UK
SYLVANIA Night Chaser LED PAR38 Light Bulb, 250W=25W, Dimmable, Super Bright 2650 Lumen, 3000K, Neutral White - 1 Pack (74793) - - Amazon.com
GE 800-Lumen, 8W Dimmable A19 LED Light Bulb, 60W Equivalent (4-pack) Soft White 93098313 - Best Buy
Swiss Tech 6500 Lumen LED Flashlight Rechargeable Dual Power AA/USB with Charging Bank, IP67 Waterproof, Drop Resistant - Walmart.com
THE ULTIMATE GUIDE TO LUMENS | Pure Optics LED
