Replacement bulbs Fluorescent tubes T4 25w T4 fluorescent tube (3400K, 650mm inc pins, 638mm excl pins)

25w T4 fluorescent tube (3400K, 650mm inc pins, 638mm excl pins)

25w T4 fluorescent tube (3400K,  650mm inc pins, 638mm excl pins)


This is product manufacturers code T4/25W by LyvEco. If you need to contact us about this product, please quote our product reference of 15015.

This low energy 25w T4 tube is from LyvEco and replaces similar sized tubes manufactured by Brackenheath and Greenbrook. These fluorescent tubes are used in under cupboard lights, kitchen strip lights, and some illuminated mirrors. warm white (3400K)

This 25w bulb is 638mm long excluding pins and 650mm long including pins. The manufacturer specifies a tolerance of +/- 3mm for these tubes.

Please note: When buying T4 lamps, it is important to purchase lamps from the same manufacturer as the light fitting that you have or at least check the size very carefully. T4 lamps vary between manufacturers in tube length and cap style, so are unlikely to fit other manufacturers fittings.

T4 fluorescent fittings have been discontinued since 2015 due to EU regulations. The electronics are located in the light fitting and not the tube. If you are finding your lamps are not lasting as long as expected, this would indicate a fault in the light fitting and not the tube - unless the tube is physically smashed it's very unlikely to have a fault. You can test tubes and fittings by swapping tube from another working fitting. Unfortunately manufacturers no longer provide a guarantee for T4 tubes, as the light fittings they are installed into may be approaching the end of their life.

May also replace the following manufacturers part codes - check dimensions to be sure: C35A, MLLT25, MLLT25WW

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Quantity discounts

Quantity Price each
1 £3.90
2-3 £3.35
4-9 £3.07
10-49 £2.90
50-99 £2.71
100-499 £2.60
500+ £2.49

Product variations


Our product ref
Total wattage
Lamp cap
Bulb type
T4 Fluorescent Tube
Mfr part #


25w T4 lamp used in kitchen lighting 650mm including pins, 638 excluding pins