Dencon Accessories - Lyvia 12W T4 FLUORESCENT TUBE 6200K DAYLIGHT 433MM LONG INCLUDING THE PINS.
Duravit Fluorescent Tube 14W F38118
T5 Light bulbs | Lighting | B&Q
Bluex Bulbs BlueX LED 60-Watt EQ 4-in Daylight Miniature Bi-pin (t5) Circline Type A or Type B LED Tube Light Bulb in the LED Tube Light Bulbs department at Lowes.com