Round, white LED ceiling light HB 501 for wide-area general lighting - Colour temperature selectable before installation The versatile HB 501 ceiling light provides wide-area general lighting thanks to the opal polycarbonate diffuser. Before installation, the colour temperature can be selected to suit the respective application using a slider on the rear, so that the ceiling light can be used equally well in recreation areas, passageways and work areas - Light colour can be adjusted in three stages before installation: Warm white (factory setting), universal white, daylight - Quick-mounting adapter made of white powder-coated sheet steel, with bayonet fixing - Also suitable for wall mounting - Impact resistance: IK06 - IP code: IP40 - Ambient temperature during operation: - 20 °C to + 45 °C - With integrated LED converter