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Crompton Lamps Fluorescent T9 Circular 40W 4-Pin Warm White FC40W/830

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Crompton Lamps Fluorescent T9 Circular 40W 4-Pin Warm White FC40W/830
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Product details

Product information

Triphosphor T9 Circular fluorescent tube light bulb in warm white. Fitted with a G10q 4-pin square push fit base. Popular in inspection light bulbs and magnifiers. Please note that the length in this case refers to the overall outer diameter.

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

Features and benefits

Estimated running cost £10.49 per year (based on 5-hours per day)

  • 2D and Circular shape Fluorescent bulb; compatible with existing fixtures with a G10q holder; designed for retrofit replacement of incandescent bulbs.
  • Rated Life: 10,000 hours
  • New 2021 Energy Rating: G (A Pre-2021)
  • Colour temperature of 3000K provides warm white light, creating a comfortable atmosphere in any facility.
  • High colour rendering (CRi >80) provides vivid and natural light.


BrandCrompton Lamps
Cap fitting4-pin
Colour rendering index (CRI)80
Colour temperature3000K
Equivalent wattage40W
kWh per 1000hr life40kWh
Lamp lumen maintenance factor (LLMF)≥80%
Life length10000h
Light technologyFluorescent
Mercury content8.5mg
Model name/numberCIR40SPWW
Pack quantity1
Power output40W
Product diameter400mm
Product length400mm
Product code5018986537514