40W IP65 4ft LED Batten - 4,800 Lumens 4,000K Cool White

This is a 4ft LED batten rated at 40W, putting out 4,800 lumens of 4,000K cool white light from a sealed linear housing. It measures 1200mm end to end, the standard four foot module, so it sits in the same ceiling run as the fluorescent tube fitting of that length it is most often bought to replace. The LED array is integrated rather than a removable tube, which means there is no tube or starter to buy alongside it and nothing to swap out later. The supplier rates the fitting IP65 and states that it is not dimmable.

A batten is a surface mounted fitting, so it sits flat against the ceiling or the wall rather than hanging on a rod or a chain, which is what makes it the usual answer where headroom is tight. These go into single garages, home workshops, utility rooms, store cupboards, outbuildings, corridors and cellar stairs. At 4,800 lumens a single fitting will light a small to medium garage on its own; over a longer double garage or a bench run, two or three spaced along the same line give you even light instead of one bright pool. The 4,000K output is a neutral cool white, cleaner and less yellow than the warm light of a sitting room, and that is the tone you want for matching paint, reading a small printed figure or sorting fixings.

In the photograph the body reads as a light grey moulded shell with a translucent diffuser clipped over the light source and metal catches along the edge, and a cable entry at one end. Because it is not dimmable, wire it to a plain switch rather than a dimmer plate. Beyond that it asks nothing of you except an occasional wipe of the diffuser, since a film of dust costs more light than the LEDs will lose in years of use.

Can I put this batten on a dimmer switch?

No. The specification states that it is not dimmable, so it needs a plain on and off switch. Wiring it through a dimmer plate or a trailing dimmer can cause flicker or buzzing.

Will it replace my old 4ft fluorescent tube fitting?

It is built on the same four foot module, 1200mm end to end, so it lands in the same span of ceiling. Check your existing fixing centres and the position of the cable entry before you take the old fitting down.

Do I need to buy a tube for it?

No. The LED source is built into the fitting, so there is no tube, no starter and no ballast to buy. When the fitting eventually reaches the end of its life the whole unit is changed rather than a lamp.

How bright is 4,800 lumens in practice?

It is a working level of light rather than a background glow. One fitting suits a single garage or a utility room; for a double garage or a long bench, run two or three in line.

What does 4,000K cool white actually look like?

It reads as a neutral white with no yellow cast, sitting between the warm light of a living room lamp and the blue tinge of daylight bulbs. Colours and printed markings stay easy to read under it.

Does the manufacturer give an equivalent fluorescent wattage?

No equivalent wattage figure is stated for this fitting, so we do not quote one. The honest numbers to compare are the 40W input and the 4,800 lumen output.