24W T8 5ft LED Glass Tube - 6000K Daylight

The Knightsbridge 24W T8 LED tube is a 1512mm (5ft) direct replacement for older fluorescent tubes, delivering 2895 lumens of 6000K daylight white light at 132lm/W efficacy. The tube uses a glass body with an opal polycarbonate diffuser to distribute light evenly across a 245-degree beam angle, reducing shadows in workshops, warehouses, retail units and commercial spaces.

Designed for standard T8 fittings on 230V mains, the tube has an integrated driver and ignites instantly without flicker or warm-up delay. The 27mm diameter matches the traditional T8 form factor, so it fits existing batten holders without modification to the fixture. The non-dimmable driver prioritises reliability and longevity over dimming capability, making the tube suited to always-on applications rather than spaces needing variable light levels.

The 6000K colour temperature produces a cool, clinical white that maximises visibility for detail work, stock-checking and inspection tasks. The tube is rated IP20 for dry indoor use only and carries a CRI of greater than 80, which is adequate for general commercial lighting but not for colour-critical environments. The L70B50 rating of 20,000 hours indicates the point at which 50% of a batch will have degraded to 70% of original output — typical lifespan under continuous operation is approximately 2.3 years.

The glass construction gives the tube a more traditional appearance than all-plastic LED tubes, which can help maintain the visual consistency of existing fluorescent installations during phased upgrades. The tube is mercury-free and carries a 2-year warranty.

Product Specification Sheet

Product Manual

Can this replace a standard fluorescent T8 tube?

Yes, the 27mm diameter and 1512mm length match the T8 form factor. The tube fits standard T8 batten holders, but you must remove or bypass the existing ballast before installation — the integrated driver in this LED tube runs directly from 230V mains. See the manual in the Downloads tab for wiring instructions.

Is it suitable for bathrooms or outdoor use?

No. The IP20 rating indicates the tube is for dry indoor environments only. It is not sealed against moisture or dust ingress, so it should not be used in bathrooms, outdoor canopies or damp workshops.

What is the colour temperature like?

The 6000K colour temperature produces a cool, bright daylight white similar to overcast daylight. It maximises visibility and alertness, making it suited to workshops, warehouses and retail stock areas rather than hospitality or residential settings where warmer light is typically preferred.

How long does the tube last?

The L70B50 rating of 20,000 hours means that after 20,000 hours of continuous operation, 50% of a batch will have degraded to 70% of their original brightness. Under typical commercial usage (12-16 hours per day), expect 3-5 years of service before noticeable dimming.