Replacement bulbs Fluorescent tubes T5 21w T5 Fluorescent tube (3400K, 849mm excl pins)

21w T5 Fluorescent tube (3400K, 849mm excl pins)

21w T5 Fluorescent tube (3400K, 849mm excl pins)


This is product manufacturers code SLLT21 by Greenbrook. If you need to contact us about this product, please quote our product reference of 5554.

Low energy 21w replacement T5 fluorescent tube. 3400K, white in colour temperature. Length including pins 863mm, excluding pins 849mm.

This is the 3400K colour temperature tube that was originally supplied with the Greenbrook Kingshield fittings - if you haven't changed the tube for a different colour temperature, this is the tube for you.

Please double check length of this tube before ordering as some manufacturers have different T5 tube lengths, despite having the same wattage.

Delivery is per order, not per item and the more you buy the cheaper they get! - do you need more than one?

Note: These are brand new, unused products that were removed from fittings during a large installation as the client required a different colour temperature of tube. This means that they do not supplied in their own retail packaging, but we will securely package them for transit.

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(inc. VAT at 20%)
(inc. VAT)

Quantity discounts

Quantity Price each
1 £1.66
2-3 £0.98
4-5 £0.64
6-9 £0.53
10+ £0.44

Product variations


Our product ref
Total wattage
Lamp cap
Bulb type
T5 Fluorescent Tube
Low energy
Mfr part #


21w replacement T5 fluorescent tube. 3400K white