Suitable for use as a floorlight or rooflight. Maintains the visual appearance of RC254/100 whilst being designed to achieve larger clear spans up to 2560mm when installed as a floorlight for pedestrian loads of 5KN/M². Contains 200mm diameter glass lenses set into concrete ribs which are spaced at 254mm centres with an overall panel thickness of 125mm. Weight – 202kg/m². In the interest of safety we recommend that when used as a floorlight, the glass lenses are sandblasted to increase slip resistance.