Sunlite Series FML27/30K/2PK Fluorescent 27W 3000K Warm White Quad Tube FML CFL Plugin Light Bulbs, 4-Pin GX10Q-4 Base, 2 Pack, 2 Count (Pack of 1), 3000K-Warm : Amazon.co.uk: Lighting
27 Watt Fluorescent Linear 4-Pin Quad GX10Q-4 Base Replacement Light Bulb for Light of America Floor Lamp or Desk Lamp | Bulb, Fluorescent bulb, Light bulb
Neez 27w Daylight Replacement Energy Saving Bulb - 4 Pin Fluorescent Natural Tube Light for Crafts Sewing Work, FML GX10Q-4 (6500k) (Pack of 1) : Amazon.co.uk: Lighting