Elegantly designed and highly efficient ceiling light for use in demanding environments. Housing and end caps made of powder-coated steel sheet. End caps without visible screws, featuring a permanently shape-retaining silicone foam seal. Curved diffuser made of non-yellowing plastic (PMMA) in opal. Specially coordinated 2-component optical system for homogeneous and soft illumination of the entire light-emitting surface. Suitable for ceiling and wall mounting. Integrated control gear. Suitable for through-wiring. Equipped with an integrated high-frequency motion sensor and light sensor. High-frequency motion sensor with a DALI interface and a Bluetooth interface for switching, dimming, and networking individual lights to complex lighting installations. Functional parameters of the motion sensor (ceiling mounting up to 4.0 m or wall mounting up to 2.5 m): HF sensor 5.8 GHz with integrated Corridor Function. Detection angle 30°-150°. Detection range up to 6 m radially, depending on installation situation and diffuser/cover. Hold time, daylight threshold, and sensitivity adjustable via app. Sensors can be networked via Bluetooth. Can be switched as a master light up to 400 W (resistive load), 300 VA (LED). Lights with limited surface temperature according to DIN EN 60598-2-24 for use in environments where non-conductive dust accumulation on the light is expected. Approved for use in the food and beverage industry. Environmentally friendly and resource-saving due to replaceable components.