PHILIPS MASTER TL5 HE 21 W/840 G5 849 mm fluorescent tube — 2,100 lm

€29.90

Tax excluded

Fluorescent tube PHILIPS MASTER TL5 HE 21 W/840 — 2,100 lm, cool white 4,000 K, Ra 85, G5 cap, length 849 mm (Ø 16 mm), life ≈24,000 h.

T5G521 W/840849 mm4 000 K2,100 lm

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The minimum purchase order quantity for the product is 5.

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Description
Product Details

The PHILIPS MASTER TL5 HE 21 W/840 is a T5 fluorescent tube, 849 mm long (Ø 16 mm), with a G5 cap. It delivers 2,100 lumens of cool white light at 4,000 K, with Ra 85 colour rendering — the benchmark for commercial installations where colours must stay true.

Operation: Electronic HF ballast required — no starter. A rated life of about 24,000 hours and excellent lumen maintenance keep maintenance visits down — which matters when the fitting sits high up or in a technical ceiling.

Direct equivalents at the same wattage and colour code: OSRAM LUMILUX T5 HE FH 21W/840, SYLVANIA Luxline Plus FHE 21W/840. A tube is chosen on three inseparable criteria — length (849 mm), cap (G5) and ballast type: a tube of the same wattage but a different diameter will not fit the luminaire.

Technical specifications

Brand	PHILIPS
Type	T5 fluorescent tube (Ø 16 mm)
Base	G5
Power	21 W
Dimensions	849 × Ø 16 mm
Luminous flux	2,100 lm
Colour temperature	4 000 K (cool white)
Colour rendering (CRI)	Ra 85
Lifespan	≈24,000 h
Ballast	Electronic HF ballast required — no starter
PHILIPS equivalent	OSRAM LUMILUX T5 HE FH 21W/840
SYLVANIA equivalent	SYLVANIA Luxline Plus FHE 21W/840

Key benefits

✓2,100 lm at cool white 4,000 K — Ra 85, true colours

✓≈24,000 h life with good lumen maintenance

✓G5 cap, 849 mm — like-for-like replacement

✓Electronic HF ballast required — no starter

Ideal for

Offices and open spacesSchools and classroomsRetail and large storesDownlights and ceiling lightsCorridors and washrooms

Frequently asked questions

Which ballast do I need?

Electronic HF ballast required — no starter Check the control gear in your fitting before ordering: it is the gear, not the tube, that dictates the type of operation.

Can I replace a T8 with a T5 (or the other way round)?

Not directly. T8 is Ø 26 mm with a G13 cap, T5 is Ø 16 mm with a G5 cap, and their lengths differ: they do not fit the same lampholders. T5 also requires an electronic ballast. Switching between them needs an adapter or a new luminaire.

What does the 840 code mean?

The first digit (8) indicates colour rendering of 80 to 89 — here Ra 85. The next two give the colour temperature: 840 = 4,000 K (cool white).

How is it recycled?

Like all fluorescent tubes it contains a small amount of mercury: take it to a WEEE collection point (recycling centre or store), never put it in household waste, and carry it without breaking it.