Integrated intumescent material completely seals the downlight and cut-out in the event of a fire. Tested in 30, 60 & 90 minute fire rated ceilings. Tested to BS476 Part 21. BS EN ISO 10140-2: 2010 & BS EN ISO 10140-3: 2010 + A1: 2015 (acoustics) confirming that they maintain the ability for an internal or separating floor to provide sound insulation. Features: Registered Community Design 390612-0001/2/3 UK Patent GB2426321 Lamp not included 3 year Warranty Specifications: Positional Adjustment: Fixed Recess Depth: 145 mm Cutout Diameter Min.: 72 mm Overall Diameter: 86 mm Height: 155 mm Material: Cast Aluminium, Pressed Steel IP Rating: IP65