9W 4" Ultra Thin Dimmable LED Recessed Lighting Fixture Retrofit Downlight - 6000K Daylight Cool White - Square LED Ceiling Light - 900 Lumens, 70W Equivalent, 4 Pack Space-Saving - Ultra-thin: 0.40 inch, only requires 1.50 inches clearance of ceiling space. Hole size 4.09 inches. Full trim size 4.72 inches. Easy Installation - Connect the provided driver box to the light and use spring clips to fix the light on ceiling, hassle free, install in seconds High-Efficiency - 30pcs bright SMD 2835 leds, 160 beam angle, 900lm 70W equivalent, super energy saving more than 80%, making it an economical alternative Reliable Safety - Durable aluminum housing, Airtight structure; No flashing, No noise; Lifespan over 35000 hours, It will last more than 13 years (based on 7 hours of use each day) Wide Application - 5%-100% smooth dimming, compatible with most dimmers, ideal for use in kitchen, living room, dining room, hallway, hotel, office, supermarket, any residential and commercial lighting and decoration