How to light a dark cupboard without calling an electrician
Almost no British house has a light inside the wardrobe, the understairs cupboard or the airing cupboard. Wiring one in means an electrician, a chase in the plaster and a bill that starts around £150. For a cupboard you open twice a day, that is hard to justify — which is why battery and rechargeable sensor lights have quietly become one of the most bought home fixes in the UK.
Here is what to look for, and what to avoid.
Rechargeable or battery?
Battery units are cheaper up front and then quietly expensive. A light on a landing that triggers ten times an evening will eat three AAAs every couple of months, and you will eventually stop replacing them. Rechargeable units plug into a USB cable every few months instead. Over a year there is no real contest.
Work out how many you actually need
This is where most people underbuy. One light feels like a gadget; the fix only makes sense when you do every dark spot in the house in one go. Walk round and count honestly: wardrobe, understairs cupboard, airing cupboard, landing, the top of the stairs, behind the kitchen door, the shed. Most homes land somewhere between five and eight. Buying a multipack once is cheaper and far less annoying than buying one, liking it, and reordering three times.
Understand what a PIR sensor can and cannot do
These lights use a passive infrared sensor, which reacts to a warm body moving across its field of view. Two practical consequences:
- It needs to see you. Mounted behind a door that opens towards it, or buried behind hanging coats, it will not trigger reliably. Mount it where the opening door reveals it.
- It will not stay on while you stand still. Most units cut out after fifteen to twenty seconds without movement. That is fine for grabbing a coat, less fine for sitting and sorting a drawer.
Warm white or cool white?
Cool white (around 6000K) is brighter to the eye and better in a garage, shed or utility cupboard where you are looking for something specific. Warm white (around 3000K) is far better anywhere you might use it at night — a landing, a bedroom wardrobe, the top of the stairs — because it will not wake you up properly at three in the morning. If a light offers both, put the warm setting anywhere near a bedroom.
Adhesive or magnet?
Most sensor lights come with a magnetic backing plate that sticks on with adhesive tape, so the light itself lifts off to be charged or used as a torch. The adhesive is the weak point, not the magnet. It needs a clean, smooth, dry surface: painted MDF and gloss are fine, wallpaper and textured paint are not. Wipe the spot with a little isopropyl alcohol first and press for thirty seconds. If the surface is rough, screw the plate instead.
The honest limitation
These are task lights. They will light the inside of a cupboard, a step, or a stretch of worktop beautifully. They will not light a room, and if you buy one expecting a ceiling fitting's worth of output you will be disappointed. Judge them against fumbling in the dark, not against a proper light fitting.
A five minute install
- Charge each unit fully before mounting — it is much easier off the wall.
- Hold it in place and open the door to check the sensor sees you.
- Clean the surface, peel, press firmly for thirty seconds.
- Leave it an hour before hanging anything from it.
If you want the version we sell, it is a rechargeable seven-pack with both colour temperatures: Motion Sensor LED Light, pack of 7. Free UK delivery in 24–48 hours and thirty days to change your mind.