OhLectric Tubular G9 Glass Cover - Threaded Bulb Cover - Sturdy Clear Glass Protectant for Bulb - Heat Resistance Up to 500C - 2.25" - Clear - OL-41332 - Amazon.com
1 Pack Light Bulb Cover for Walk in Refrigerators, Light Bulb Protector Cage for Hood Bulbs, Light Bulb Covers for Bare Bulb 31902, by FryOilSaver Co. - Amazon.com
OhLectric Tubular G9 Glass Cover - Threaded Bulb Cover - Sturdy Clear Glass Protectant for Bulb - Heat Resistance Up to 500C - 2.25" - Clear - OL-41332 - Amazon.com
Bulb Shields: When to Use Them - EmeryAllen, LLC - Blog Post
OhLectric Tubular G9 Glass Cover - Threaded Bulb Cover - Sturdy Clear Glass Protectant for Bulb - Heat Resistance Up to 500C - 2.25" - Clear - OL-41332 - Amazon.com
Feit Electric 60-Watt Equivalent BA10 E12 Candelabra Dimmable Filament CEC Frosted Glass Chandelier LED Light Bulb Soft White (2-Pack) BPCFF60927CAFIL/2/RP - The Home Depot
472 – Light Bulb Cover – Alfonso's Breakaway Glass Inc.