Plug & Play FML27 Warml white 2700K LED directly relamp and replace the 27 watt fluorescent bulb FML27 without rewiring or modification.
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
27w Replacement Bulb 4 Pin FML 6400K for daylight energy saving Floor Read Lamp | eBay
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