COOL White colour temperature (4000k / 840). Circular fluorescent tubes are often used in wall and ceiling lights. They have a long life and low energy consumption.
Bell 60w T9 Circular Fluorescent Tube - 29mm tube diameter (Warm White, 3000k)
2 x 60W T9 Cool White Crompton Circular Fluorescent Tube T9 Watt Round FC60W/840
Crompton T9 Circular Light Bulb Fluorescent Triphosphor G10q 60W Lamp Bulb 4 Pin
Crompton Lamps Fluorescent T9 Circular Light 4-Pin 60W Warm White 3000K FC60W/830
BELL 05471 60W T5 Circular Tube 2GX13 6500K Daylight
40W T9 CIRCULAR FLUORESCENT TUBE 6500K DAYLIGHT WHITE 3200 LUMENS 865 LIGHT BULB
