S054-15 is a surface-mounted narrow-beam ceiling spot — a cylindrical body 6 cm across on a rotating mount, 20 cm tall overall, in matt white. Zambelis positions it as a professional fitting and the figures bear that out: 9 W delivering 1000 lumens at CRI 90.
15 degrees: this is a spotlight, not general lighting
The defining figure here is the 15° beam. From 250 cm above the floor that beam draws a pool roughly 60 cm across — a narrow, clearly bounded circle of light. It is a tool for lighting a painting, a sculpture, a window display or a single architectural element, not for brightening a room. If you want even light this is the wrong fitting — Zambelis builds the same model in 24° (S054-24) and 40° (S054-40).
CRI 90
A colour rendering index of 90 is consistent with that use. If the fitting exists to pick out one object, that object's colour has to be faithful — at CRI 80 reds and browns lose saturation, which shows immediately on a painting or a fabric.
Adjustment
The body rotates and tilts, so the direction is set after installation without moving the fixing point. With a 15° beam that adjustment is not a convenience but a condition of use: a few degrees of tilt shifts the pool by tens of centimetres.
Supply and control
An On/Off 250 mA driver is supplied with the fitting — connect 230 V and the spot is ready. In this configuration it is not dimmable. Zambelis does allow operation with a DALI driver, ordered separately; that is the route to dimming and to control-system integration, but it means changing the driver, not the fitting.
Operating conditions
The fitting is protection class I and requires an earth conductor; IP20 places it in dry rooms. The −25 to +50 °C range covers unheated interiors too. The declared L80B50 life of 50,000 hours means that after that time half the fittings will still hold at least 80% of their initial output.
Specification
- Manufacturer code: S054-15
- EAN: 5213007834690
- Power: 9 W (LED, integrated)
- Luminous flux: 1000 lm
- Colour temperature: 3000 K
- CRI: 90
- Beam angle: 15°
- Energy class: E
- Driver: On/Off 250 mA included
- Ingress protection: IP20
- Protection class: I
- Dimensions: height 20 cm, ø 6 cm, body length 13 cm
- Material: aluminium
- Colour: matt white
- Adjustment: rotation and tilt
- Rated life: L80B50 50 000 h
- Operating temperature: −25 … +50 °C
- Weight: 0,35 kg
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