Retail: Shenzhen furniture showroom
The brief
The project is a furniture showroom in Shenzhen, China, with an open black ceiling over a large sales floor. The design called for the ceiling to become the feature: free-form loops and waves of light drawn across the whole space, hanging below the dark structure.
The lines had to read as solid color from anywhere on the floor, and the color had to change with the room, so the showroom could shift its mood without touching the hardware.
What we supplied
Unitop supplied about 3,940 ft (1,200 m) of UT-ND40-360 round LED neon flex in RGBW with DMX control, at 24V DC and 15 W/m (4.6 W/ft).
The ND40 is a fully round profile, 40 mm in diameter, that glows all the way around. Hung in mid-air and seen from below and from the side, it looks like one continuous tube of light from every angle.
The neon shipped in 5 m (16 ft) reels, wired in series or in parallel on site. Each run is held by mounting clips spaced every 0.3 m (about 1 ft), and the clipped lines are suspended from the ceiling, so the clips also hold each curve in its shape.
| Specification | Value |
|---|---|
| Model | UT-ND40-360 round LED neon flex |
| Profile | 360° round, Ø40 mm (1.57 in) |
| Color | RGBW |
| Control | DMX |
| Voltage | 24V DC |
| Power | 15 W/m (4.6 W/ft) |
| Minimum bend | Ø 200 mm (7.87 in) |
| Reel length | 5 m (16 ft), wired in series or in parallel |
| Mounting | Clips every 0.3 m (about 1 ft), suspended from the ceiling |
| Total quantity | About 3,940 ft (1,200 m) |
| Completed | October 2025 |
The result
The showroom opened with the lighting in October 2025. The ceiling now carries layers of colored loops that reflect in the polished concrete floor and the mirrored walls.
Look closely at the photo and you will see short dark spots along some lines. Those are the joints: the shapes were built up on site, joined about one meter at a time, and each joint leaves a small gap in the light.
For contractors, that is the lesson of this job. On a free-form ceiling, decide on the drawing where the joints go, and keep them out of the main sight lines. It costs nothing at the planning stage and is hard to change once the lines are hung.
