Housing made of die-cast aluminum painted in RAL 9016 traffic white, wired for operation with driver, aluminum heat sink for effective passive cooling and recessed opal diffuser disc to loosen up the ceiling look. With fastening springs for tool-free installation, suitable for ceiling thicknesses of 10mm-20mm. Direct wide beam light distribution using diffusely radiating, opal diffuser with structured surface. External LED driver for direct connection.