DIADEM® | square
with V-shaped reflector

DIADEM® LED brings together a timeless design with premium light quality for standard applications. The flat surface-mounted luminaire blends discreetly into the ceiling. The V-shaped secondary reflector and resultant indirect light distribution ensures pleasant, soft and harmonious illumination. The good colour rendering of the LEDs also contributes to positive room appearances. With two standard dimensions of 600 x 600 mm and 1200 x 300 mm as well as 3100 and 4000 lumen versions, the luminaire range has been designed to directly replace louvre luminaires with traditional technology (T26 2x 36W / 4x 18W). DIADEM® LED is therefore an ideal refurbishment solution for general lighting in offices, conference rooms, traffic zones and corridors.

Special features
  • pleasant light with indirect light control via symmetric distribution, V- shaped secondary reflector
  • flat LED luminaire: construction height 50mm
  • efficient refurbishment product for obsolete lighting systems with conventional louvre luminaires (T26 2x 36W / 4x 18W)
  • flexibility with two mounting options: suspended or surface-mounted to ceilings
Lighting technology

V-shaped secondary reflector, white with matt surface, symmetric distribution, for uniform and harmonious light distribution


Luminaire with 3-pole connection terminal, max. 1.5mm²


Housing of sheet steel, end caps and reflector of PC, all parts in traffic white (RAL 9016) | longitudinal oblique LED cover of PMMA

Rapid advances in LED technology lead to permanent improvements in energy efficiency. This has the consequence that the luminous flux or power consumption may change accordingly. The current values can be found in the photometric report of each product and in the current download files of the lighting planning data.