General
Power	8 W
Colour temperature	930 K
Colour rendering index	90 Ra
Colour difference	3 SDCM
Dimming function	dimmable via phase cut
Built-in diameter	68 mm
Material	Aluminium die-cast
Surface protection	powder-coated or galvanised
Type of control gear	included
Connection box	with through-wiring (L, N, PE), plug-in terminals

The Nobile Downlight A 5068Q T is an LED recessed luminaire for use in spot and general lighting applications. It is a flat, compact luminaire specifically designed for ceilings with limited installation depth. The luminaire features a real glass reflector and an aluminium die-cast heat sink, ensuring efficient heat dissipation. The surface is either powder-coated or galvanised, providing a robust and long-lasting coating. The luminaire is intended exclusively for installation in suspended ceilings, with attention required during mounting to ensure minimal convection. The device must not be covered with insulation material to ensure sufficient cooling.

Applications
This luminaire is suitable for use in residential and commercial spaces, as well as offices, where discreet yet efficient lighting is required. Due to its flat design, it is particularly suitable for rooms with limited ceiling height or during renovation of existing ceiling structures. The combination of a real glass reflector and aluminium heat sink ensures even light distribution and high thermal load capacity.

Functions and Equipment in Detail
The downlight features an integrated driver, dimmable via phase-cut dimming. This allows flexible adjustment of brightness according to specific requirements. The connection box is equipped with through-wiring (L, N, PE) and push-in terminals, simplifying installation and ensuring a secure electrical connection. The luminaire is designed for an installation diameter of 68 mm, making it compatible with most common concrete recessed enclosures. Specifically tested models include KAISER HaloX® 100 with tunnel 190 (type 1281-30) and HaloX® 180 with tunnel 190 (types 1282-72/1282-75), with mounting recommended using front part type 1281-11.

Technology Explained Simply
The luminaire is based on LED technology and consumes 8 W of electrical power. The light colour corresponds to colour temperature 930, which is warm white. The colour rendering index Ra is 90, meaning colours appear very natural under this lighting. The colour deviation (MacAdam) is 3 SDCM, ensuring high colour consistency over the luminaire’s lifetime. The lifespan is 50,000 hours (L80 B10), meaning that after 50,000 hours of operation, 80% of the original light output remains and no more than 10% of the luminaires will have failed.

Compatibility and Accessories
The luminaire is designed for installation in concrete recessed enclosures and can be mounted in all common models. The specifically tested KAISER models HaloX® 100 and HaloX® 180 with tunnel 190 offer secure and stable mounting. The use of front parts such as type 1281-11 is recommended to ensure optimal fit and optical quality. The luminaire is not intended for outdoor use or in damp rooms, as no protection rating such as IP67 is specified.

Installation and Mounting
Mounting is carried out in the suspended ceiling, using an installation box with a diameter of 68 mm. The connection box enables simple and secure electrical connection. The push-in terminals simplify wiring, and the through-wiring (L, N, PE) allows flexible integration into existing electrical systems. The luminaire is cooled by convection, so covering it with insulation material must be avoided.

Operational Advantages
The luminaire offers high light quality with a colour rendering index of 90 and colour consistency of 3 SDCM. The long lifespan of 50,000 hours reduces maintenance effort. The dimmable function via phase-cut dimming allows individual adjustment of brightness. The flat design and compatibility with common installation boxes make the luminaire a flexible solution for various application scenarios.