Cumbuco Square LED Flush Ceiling Light 35W 4000K - White

The Cumbuco is a 400mm square flush ceiling light with an integrated 35W LED producing 2100 lumens of 4000K cool white light through a smooth acrylic diffuser. The white metal frame holds the diffuser 100mm below the ceiling, creating a low-profile fitting that minimises headroom intrusion while maintaining an even spread of light across the 120° beam angle.

Designed for hallways, kitchens and utility rooms where ceiling height is limited and a neutral white light is needed for task visibility, the Cumbuco works in spaces with ceiling heights as low as 2.2m without feeling intrusive. The 4000K colour temperature sits between warm white (2700K-3000K) and daylight white (5000K-6500K), offering a crisp, functional light that reads as neutral rather than either warm or clinical. The 2100 lumens output covers approximately 8-12m² depending on ceiling height and room reflectance.

The square geometry creates defined edges and corners that remain visible once the light is switched on, giving the fitting a sharper architectural presence than circular flush lights. The white finish on the metal frame pairs cleanly with white ceilings, allowing the fitting to blend when needed or stand as a defined square accent depending on the ceiling colour. The acrylic diffuser hides the LED array behind an even surface with no visible hotspots or individual diode points, and the non-dimmable driver connects directly to standard UK 230V mains wiring.

Is the Cumbuco dimmable?

No. The integrated LED driver is non-dimmable and must be connected to a standard mains switch rather than a dimmer circuit. Attempting to fit it on a dimmer circuit may damage the driver or cause flickering.

What room size does 2100 lumens cover?

2100 lumens provides functional task lighting for rooms of approximately 8-12m² depending on ceiling height, wall reflectance and the level of brightness needed. In kitchens and bathrooms where bright working light is needed, aim towards the lower end of that range. In hallways and bedrooms where softer ambient light is acceptable, the upper end works.

What does 4000K cool white look like?

4000K sits midway between warm white (2700K-3000K) and daylight white (5000K-6500K). It appears as a neutral white light without the yellow cast of warm white or the blue cast of daylight white, making it a common choice for bathrooms, kitchens and utility spaces where colour-neutral task lighting is needed.

What ceiling height is needed?

The 100mm projection from the ceiling means the Cumbuco works in rooms with ceiling heights as low as 2.2m. In taller rooms it can be used where a flush fitting is preferred over a pendant or semi-flush for aesthetic or practical reasons.