Shelf & Display Case Lighting: A Guide to LED Strips and Cabinet Lights

A display case is only as good as the light inside it. The same object, in the same case, can read as stock or as something worth buying, and the difference usually comes down to three things: colour temperature, colour rendering and where the light is aimed.

Start with the object, not the fitting

Warm light at 3000 K flatters wood, leather, jewellery and food; 4000 K reads cleaner and is the safer choice for glassware, cosmetics and white paper. Colour rendering matters more than either: a strip with a CRI above 90 shows a red scarf as red rather than brown, and it is the one specification most often missing from a quotation. Aim for 450 to 650 lux on the top shelf of a case, and let the light fall away gently as the eye travels down.

Run the light where the eye already looks

Under-shelf strips belong at the front edge, not at the back, so the beam washes across the product and the shelf itself stays the brightest thing in the frame. Keep the diode out of sight: an angled channel, a recessed aluminium profile or a diffused cover each remove the hot spot that makes a display cabinet look cheap. Where a cabinet has glass shelves, recess the strip into the shelf edge so every shelf lights the one below it.

Choose wired or battery, bay by bay

A fixed run of shelving should be wired, with 24 V track or a cable channel built into the upright, because a permanent installation that depends on batteries is a maintenance job waiting to be scheduled. Battery showcase lights earn their place in wall-mounted vitrines, in older buildings where you cannot chase the wall, and in pop-ups that will be struck in three months. Match the switch-off to the day: a door switch or a timer pays for itself within a year of lamps left burning.

A glass display counter built and installed by our factory — LED tubes sit inside the case under the glass top, with a back-lit frosted glass base. Lighting is designed with the cabinet, not added afterwards.

Keep heat and cables out of the case

Use remote drivers rather than fittings with built-in transformers, so that no heat reaches paper, textile or painted surfaces, and so a failed driver can be changed without emptying the case. Bring cables in through a sealed grommet, leave a service loop behind the plinth, and label the circuit. A display case that cannot be re-lamped without a toolbox is one that will be re-lamped in the dark.

Plan the maintenance before opening night

LED strips fail at the ends first, and colour temperature drifts between production batches, so buy the spare reel with the first order. Keep drivers, dimmers and connectors in one accessible place and write the colour temperature and CRI on the inside of the case. Whoever re-lamps the display in three years will thank you.

Planning a shop, showroom or museum display, and want the lighting designed with the case rather than after it? Send your drawings and the pieces you need to light for a free 3D design of your shelving and display cases with integrated LED — we manufacture, QC and deliver DDP to your country, duty paid.