Flush Ceiling Lights

Flush or semi-flush?

A flush fitting mounts directly against the ceiling with no visible gap, so it takes up the least possible height. A semi-flush sits on a short stem, holding the fitting an inch or two below the ceiling, which lets light wash upwards as well as down and gives a little more presence in the room. The rule of thumb is straightforward: under about 2.4 metres of ceiling height, or anywhere people walk directly beneath, choose flush. Above that, or where you want the fitting to be part of the decoration rather than disappear into it, semi-flush is worth the extra depth.

Sizing the fitting to the room

A useful starting point is to add the room dimensions in metres and treat that figure as the diameter in centimetres. A 4m by 3m bedroom suggests a fitting around 70cm across, though that is a guide rather than a rule and a smaller fitting can work well where the room already has other light sources. In a hallway, err smaller and place two rather than one large fitting, since even coverage matters more than a single focal point in a space people move through.

How much light do you need?

Because a flush fitting is often the only light in the room, output matters more than it does for a decorative pendant. As a rough guide, a bedroom wants around 300 to 400 lumens per square metre, a kitchen or bathroom nearer 400 to 500. Check the total lumen figure rather than the wattage, since an LED fitting and a fitting taking five halogen lamps can draw very different power for the same amount of light. Where the fitting takes replaceable lamps, you also keep the option of changing the brightness later.

Integrated LED or replaceable lamps?

An integrated LED fitting is slimmer, needs no lamps buying and typically runs for tens of thousands of hours, but when it eventually fails the whole fitting is replaced. A fitting that takes standard lamps such as E14, E27 or GU10 can be re-lamped indefinitely and lets you choose the colour temperature and brightness yourself. For a hallway that runs for hours every day, integrated LED usually makes sense. For a room where you may want to change the mood later, replaceable lamps give you more control.

Bathrooms and damp areas

Any fitting going into a bathroom needs an appropriate IP rating. IP44 is the usual minimum for a ceiling fitting outside the immediate shower zone, and IP65 is required where it may be subject to direct water. The zones are defined by distance from the bath or shower, so check where the fitting will actually sit rather than assuming the whole room needs the same rating. If you are unsure, an electrician will confirm the zone before you buy.

Fitting and maintenance

Flush fittings mount to a ceiling rose or a back plate, and the plate needs fixing into something solid rather than plasterboard alone. Because the fitting sits tight to the ceiling, check how the diffuser comes off before you buy, since some designs need two hands and a step ladder to change a lamp. Wipe glass and metal with a dry cloth rather than a spray cleaner, which can mark a brushed or aged finish permanently.