Teardown: The super-adjustable Ketra A20 LED bulb - Power Electronic Tips
Ketra A20 Lamp by Ketra featured on Design Journal.
Ketra Natural Lighting System — 3rings
Teardown: Inside Ketra's $100 A20 LED light bulb - YouTube
Ketra Lighting: 5 reasons you should consider it for your home
S30 PAR30 Lamp - Ketra
Transform Your Home's Lighting with Lutron and Ketra - Blog
Ketra Lighting: 5 reasons you should consider it for your home
Ketra is a six year-old lighting startup taking on GE and Philips | Fortune
The Architect's Guide to Using Ketra Lighting in Home Designs
Ketra's Innovative Tech | innovation, technology | We created next generation lighting tech. Then, we improved it. Get to know the latest tech powering Ketra. #ketraandlutron #smarttech #innovation | By Ketra | Facebook
Lutron + Ketra: The Future of Lighting Control - Apollo Electric Incorporation