Set of 16 modern adjustable Gloss White recessed downlights. Suitable for all rooms, bedrooms, children's rooms, dining rooms, guest rooms, hallways, kitchens, living rooms, porches, study & utility rooms. 11.7 cm height x 9.4 cm diameter. Cut out required 8.3 cm. This product is suitable for use with LED bulbs and when paired with a dimmable bulb can be dimmed. This product is compatible with most domestic smart light bulbs. Always check bulb length against product dimensions to confirm suitability. 16 x 50W Max GU10 Halogen (required). Class I - Earthed for your safety.