See more Light bulbs


Right chevron


Right chevron

Light bulbs

Right chevron

Crompton Lamps Fluorescent 18" T8 Tube 15W Triphosphor White F15W/835

Sold & shipped by Lightbulbs Direct

Left chevron
Zoom inZoom outZoom reset
Crompton Lamps Fluorescent 18" T8 Tube 15W Triphosphor White F15W/835
Right chevron
Checking availability...
Checking availability...

Product details

Product information

F15W/835 fluorescent T8 tube 18" Triphosphor light bulbs - 3500K White Tube length: 18" - 438mm (450mm with pins) Fitted with a standard sized G13 2-pin (13mm apart) caps to both ends. This triphosphor fluorescent T8 tube provides a superior quality of light, with greater energy efficiency and a longer life. Unlike a standard tube, triphosphor tubes retain their high quality of output throughout their lifetime. With uniformly good colour rendering illuminating objects in their natural light, these tubes are ideal for shop lighting, as well as for high-quality lighting in the office and home. Rated lifetime of 15,000 hours (That's around 10 years of light, based on average use of 4 hours per day). NB - This replaces the older, less efficient Halophosphate tube. For maximum performance and efficiency from your new fluorescent tube, we recommend you replace the fluorescent starter at the same time.

  • Light colour - White
  • Guarantee - Statutory
  • Suitable use type - Ceiling lights, table or floor lamps

Features and benefits

Estimated running cost £3.93 per year (based on 5-hours per day)

  • Tube shape Fluorescent bulb; compatible with existing fixtures with a G13 holder; designed for retrofit replacement of incandescent bulbs.
  • Tube Length: 438mm (450mm with pins)
  • Rated Life: 15,000 hours
  • New 2021 Energy Rating: G (B Pre-2021)
  • High colour rendering (CRi >85) provides vivid and natural light.


BrandCrompton Lamps
Cap fittingG13
Colour rendering index (CRI)85
Colour temperature3500K
Equivalent wattage15W
kWh per 1000hr life15kWh
Lamp lumen maintenance factor (LLMF)≥90%
Life length15000h
Light technologyFluorescent
Mercury content3.5mg
Model name/numberFT1815SPW
Pack quantity1
Power output15W
Product diameter26mm
Product length438mm
Warm up time0.5s
Product code5018986513396