Decorative, square surface-mounted luminaire with an impact-resistant, opal diffuser made of PMMA. Version with increased protection class IP54 all around. Decorative coverings for precisely fitting light and room staging are available as an optional accessory, which can also be made in customer-specific colors on request. Developed and manufactured in Germany. Suitable for use in HACCP, IFS and/or BRC Global Standard Food certified companies. With limited surface temperature, suitable for use in fire-hazardous rooms in accordance with DIN EN 60598-2-24. For wall or ceiling mounting. For protection and to support quick assembly, the components in the box are arranged in assembly order. The cover can be quickly mounted on the mounting body without tools using a click lock. The feed opening and the fastening points correspond to those of the Deca series. The material and structure of the covering diffuser ensure even and shadow-free illumination of the easy-to-clean luminaire surface. With Lambertian light intensity distribution. With a slight indirect component to brighten the surface. Luminaire luminous flux adjustable in 4 levels. Rated luminous flux 1300 lm - 3800 lm, rated power 11 W - 29 W, maximum luminaire luminous efficacy 136 lm/W. Light color warm white, correlated color temperature (CCT) 3000 K, general color rendering index (CRI) Ra > 80. Color location tolerance (initial MacAdam) = 3 SDCM. Average rated service life L80(tq 25 °C) = 100,000 h. The light source is replaceable in accordance with the ecodesign requirements (Regulation (EU) 2019/2020). The replacement is done without tools, the replacement light source can be obtained as a spare part. Luminaire body made of sheet steel. Surface coated white (RAL 9016). Luminaire dimensions (L x W x H): 325 mm x 325 mm x 68 mm. Insect-proof lamp compartment. Protection class (EN 61140): I, protection type (DIN EN 60529): IP54, shock resistance level according to IEC 62262: IK06, test temperature glow wire test according to IEC 60695-2-11: 650 °C. Weight: 1.6 kg. With electronic control gear, switchable. The control gear is replaceable in accordance with the ecodesign requirements (Regulation (EU) 2019/2020). The product meets the basic requirements of the applicable EU directives and the Product Safety Act and bears the CE marking. Luminaire 10 years, spare parts (LED module, control gear, optical system) 15 years after the invoice date, subject to reasonable changes that serve progress.