F40w - T12 Fluorescent Tube 4ft 40W

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Fastest delivery: Monday 5th Jun
Standard delivery: Tuesday 6th Jun

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Key Features

  • Wattage: 40w
  • Length: 4ft/1200mm
  • Diameter: 38mm
  • Lumen: 1,350lm
  • Average Lifetime: 15,000

Key Features

  • Wattage: 40w
  • Length: 4ft/1200mm
  • Diameter: 38mm
  • Lumen: 1,350lm
  • Average Lifetime: 15,000

This is a 4ft 40w T12 Triphosphor Fluorescent tube in a 3500k / standard white colour, used within T12 batten fittings, these tubes are ideal for lighting large areas such as warehouses and factories, but can also be used in domestic environments.

The 3500K (standard white) colour temperature works particularly well in commercial environments, with this temperature encouraging concentration and focus while being a softer alternative to harsher lighting. 

F40W/35, as they are commonly known, are a traditional T12 type of fluorescent tube with a G13 cap type and are roughly 38mm in diameter. This particular tube is extremely rare due to all major manufacturers making them obsolete in 2012.

This tube is Triphoshor meaning it will last much longer and has around a 20% better light output than the older halophosphate tubes.

The Triphosphor T12 tubes have been introduced to allow customers to replace their old T12 tubes with higher quality and longer life tubes over the original (15,000 hours vs 8,000 hours). The benefits are maintaining the same look for old fittings while using modern T8-type technology.

Have trouble with your fluorescent lighting?

View our guide on how to solve common issues here.

The T12 tubes are suitable for all stores, warehouses, factories and other large industrial sites as well as public buildings and spaces. Especially suitable for offices, corridors, garages, and as display lighting. 

Not quite what you're looking for?

View our range of T5 tubes here.

View our range of T8 tubes here.

View our range of T12 tubes here.

T12 Fluorescent Tubes Features

  • Wattage: 40w
  • Length: 2ft/600mm
  • Diameter: 38mm
  • Lumen: 1,350lm
  • Average Lifetime: 15,000
  • Cap: G13
  • Colour Rending: 85ra
  • Colour Temperature: 3500K / 835

All Delivery Methods Are Based On Working Days (Monday-Friday)

Free 1 - 2 Day Delivery (No Size Restrictions) Over £65 + VAT

Royal Mail Tracked 2nd Class 2ft And Under Only - £3.32 ex VAT

Royal Mail Tracked 1st Class 2ft And Under Only - £4.99 ex VAT

Courier Signed For Delivery (1-3 Days) - £7.49 ex VAT

Courier Guaranteed Next Day - £8.99 ex VAT

Courier Next Day Pre 12:00 - £14.58

Courier Saturday Pre 12:00 (If ordered before 3pm Friday) - £25.00 ex VAT

* Same Day Dispatch On All If Ordered Before 3pm

We understand sometimes things go wrong and we aim to make returns as simple as possible.

If you're not happy with your purchase you can return items to us within 30 days of receiving your order providing the goods are unused. To return your items, please e-mail with your order number and we will send a returns number and return instructions to you. Once the goods are returned back to us, we'll credit the full value of the order including shipping. If the return is partial, we'll refund the value of the goods only.

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