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Osram Lumilux T5 HE Fluorescent Tube 849mm Cool White 21W
Quick Find: 36459
Product Discontinued
This item was discontinued on 27th March, 2025
Alternatively check out our full range of simular products below:
T5 Fluorescent Tubes (15mm Diameter)
Cap/Base
G5
Cap/Base Type
2 Pins Each End
Colour Temp
4000 K
Diameter
15 mm
Dimming?
Dimmable
Fluorescent Tube Type
T5 Linear (15mm Dia)
Length
849 mm
Light Bulb Type
Fluorescent Tube (Linear)
Light Colour
Cool White (840/845)
Lumens
1900 lm
Manufacturer
Osram
Technology
Fluorescent
Type
Light Bulb
Wattage
21 W
Product Overview
Osram Lumilux T5 HE Fluorescent Tube 849mm Cool White 21W from Osram
Model: HE 21 W/840
Designed as a high efficiency alternative to a standard T5 lamp this Cool White Osram T5 (16mm diameter) HE Fluorescent Tube provides increased luminous intensity and improved economy. With a 24000 hour life span and slim dimensions this lamp is ideally suited to compact luminaires in environments such as Offices, Shops or Supermarkets.
Technical Specifications
| Light Bulb Type | Fluorescent Tube (Linear) |
|---|---|
| Fluorescent Tube Type | T5 Linear (15mm Dia) |
| Technology | Fluorescent |
| Wattage | 21 W |
| Manufacturer | Osram |
| Light Colour | Cool White (840/845) |
| Dimming? | Dimmable |
| Lumens | 1900 lm |
| Colour Temp | 4000 K |
| Diameter | 15 mm |
| Length | 849 mm |
| Cap/Base Type | 2 Pins Each End |
| Type | Light Bulb |
| Manufacturers Average Lamp Life | 24000 hrs |
| Energy Efficiency Rating | A+ |
| Cap/Base | G5 |
| Manufacturers Part Number | HE 21 W/840 |
Associated Product Barcodes
| 4050300464701 |
| 4050300464718 |
| 4050300591407 |
| 4050300591414 |
Alternative Stock Identifier Part Codes
| OS F21T5840 H047 |
Lawrence Gibbons
12th December 2025
These guys deserve a review just because of how expertly packaged they sent my fragile and delicate T5 tubes. I will admit not having high hopes of a courier being able to deliver these in one piece but they were snugly bubble wrapped in a very sturdy cardboard tube. Fantastic fast delivery.
Isabel Davies
3rd December 2025
BLT suggested an alternative light bulb for one that had been discontinued which meant I didn't have to replace the fitting, very helpful, thanks
