ROUND CEILING DOWNLIGHT: The Astro Minima Round Fixed IP20 Bathroom downlight finished in matt black features a simple and understated design made from steel FIXED INTERIOR SPOTLIGHT: This GU10 downlight looks great in the bathroom, shower or wet room. Low glare light illuminates in a fixed downwards direction and can be dimmed when paired with a dimmable GU10 bulb MATT BLACK FINISH: Made from a steel construction, the Minima is a high-quality, durable ceiling light and is supplied with Astro's 3-year guarantee REQUIRES GU10 BULB: The Minima require 1 x 6W Max LED GU10 bulb (maximum length of 75mm), which you will need to purchase separately. A cut-out diameter of 76mm / 3in and a recess depth of 150mm is required FIXINGS & INSTRUCTIONS: All Astro products are supplied with clear and comprehensive instructions for installation SMART BULB COMPATIBLE: This product is compatible with most domestic smart light bulbs. Please check bulb length against product dimensions to confirm suitability