T4.2 1 3528 SMD LED Light Bulb 12 Volt DC Dim-able - Automotive - Other - LEDLight
Bulbrite LED Mini 35-Watt EQ T4 Soft White Candelabra Base (e-12) Dimmable LED Light Bulb (2-Pack) in the Specialty Light Bulbs department at Lowes.com
Konideke 5.5 Inches OD T4 12 Watt 6400K Circular Fluorescent Bulb FCL/T4/12W Circline Lamp Round Bulb for Magnifier and Desk Lamp Daylight 6500K - Amazon.com
11W T4 Round Lamp Tube Ring Light Tube With 4 Pins LED 220V White Light Tube - AliExpress
Fluorescent Lamp - T4 12W for 8093, 8093b - China Bulb, Fluorescent Lamp | Made-in-China.com
Bulbrite LED Mini 35-Watt EQ T4 Warm White Candelabra Base (e-12) Dimmable LED Light Bulb (2-Pack) in the Specialty Light Bulbs department at Lowes.com