SGL 4-Inch LED Recessed Lighting Kit, 6x GU10 Dimmable 6w LED Bulbs Included, 2700K Warm White,Swivel, 6-Pack Easy installation by one kit. Retrofit Housing, 4 inch can light trim, GU10 dimmable LED bulbs are all included A swivel gimbal, giving you the ability to focus light on specific areas and can be directed for any desired look Energy saving up to 80% and No lead or mecury Dimmable, works with most of dimmers, but to ensure flicker free dimming please use with silicon-controlled rectifier type dimmer Maintenance free, extremely long life with 5 years warranty