General
Diameter	400 mm
Power	26 W
Colour temperature	830 K
Colour rendering index	80
Colour difference	3 SDCM
Luminous efficacy	L70 B50
Type of control gear	Dimmable Dali/push
Housing material	Aluminium white powder-coated
Diffuser material	Polystyrene (non-yellowing)
Light guide material	Polycarbonate
Cable suspension length	2 m
Supply cable diameter	2,5 mm
Cable suspension diameter	1,5 mm
Canopy	included

The Nobile LED pendant panel 1574011012 is a flat, round ceiling luminaire with a diameter of 400 mm and a height of 20 mm, designed for recessed and pendant mounting in indoor spaces. The product features a very shallow design, making it particularly suitable for rooms with limited ceiling height or for aesthetically pleasing design. The luminaire is suspended from the ceiling using a cable, with the cable suspension of 2 m length included. Power supply is via a cable with a diameter of 2.5 mm, while the suspension cable has a diameter of 1.5 mm.

Applications
This LED pendant panel is suitable for use in offices, administrative buildings, waiting areas, shops, and other indoor spaces where uniform, glare-free, and energy-efficient lighting is required. The flat design enables discreet integration into room design, while light distribution via the diffuser and light guide ensures homogeneous illumination. Integrated dimmability via Dali and Push allows flexible adjustment of light intensity according to specific requirements.

Functions and equipment in detail
The luminaire uses high-efficiency SMD-LEDs arranged around a light guide made of polycarbonate. The light source is fed laterally into the light guide, achieving uniform light distribution. A specially designed reflector foil ensures that 100 % of the generated light is directed forward. The polystyrene diffuser, which is resistant to yellowing, provides glare-free and pleasant light emission. The housing is made of white powder-coated aluminium, offering a robust and visually appealing surface.

Technology explained simply
The lighting technology is based on a light guide system, where the LEDs are arranged around the periphery of the round panel and light is fed laterally into the light guide. This distributes the light evenly across the entire surface, creating homogeneous illumination without harsh shadows. The reflector foil ensures that no light is lost backward or sideways, but is fully directed forward. The polystyrene diffuser provides soft, diffused light emission, minimizing eye strain. The colour rendering index (Ra) is 80, ensuring good colour rendering for indoor spaces. The colour deviation (MacAdam) is 3 SDCM, indicating low colour variation between different luminaires. The lifespan is 50,000 hours (L70 B50), corresponding to high operational reliability and low maintenance frequency.

Compatibility and accessories
The ballast is included in the delivery scope and enables dimmable control via Dali and Push. The canopy is also included and serves to house the ballast, ensuring a neat and proper installation.

Mounting and installation
Mounting is done using the supplied cable suspension, which is attached to the ceiling. The cables are pre-assembled, making installation quick and easy. Electrical connection is made via the power supply cable, which is connected to the ballast. The luminaire’s position can be adjusted during installation to achieve the desired hanging height.

Advantages in operation
The LED pendant panel offers high energy efficiency and a long lifespan of 50,000 hours, resulting in low operating costs. Dimmable control via Dali and Push allows flexible adjustment of light intensity according to specific needs, enabling energy savings. The flat design and elegant appearance integrate well into modern interior designs. The use of yellowing-resistant polystyrene for the diffuser ensures that light quality is maintained throughout the entire service life.