Philips Lighting 3003551 1.13 x 8 in. 22W T9 Circline Fluorescent Bulb 6200K Daylight Circular - Walmart.com
Philips 32-Watt 12 in. Linear T9 Fluorescent Tube Light Bulb Cool White (4100K) Circline 391177 - The Home Depot
Philips Lighting on Twitter: "Interview: Learn about circular lighting with Anton Brummelhuis, Sr. Director of Sustainability, Philips Lighting. https://t.co/jdY15bcPDs https://t.co/65dURb7teV" / Twitter