ADJUSTABLE TRIM: directional gimbal, perfect for highlighting areas of interest such as artwork, photographs or furniture. This gives you the ability to focus light on specific areas and can be directed for any desired look EASY INSTALL: patented PUSH-N-CLICK clips are fully adjustable and extra wide to grip uneven surfaces and provides for simple tool-free installation. Actual hole size is 3.25-inches. Full trim size is 4-inches. IC RATED: when kit is used with an LED Bulb (bulb sold separately). Integrated cut-off switch, ensuring that the fixture will not overheat and can be used with or without an insulation box ROBUST CONSTRUCTION: galvanized steel, large accessible electrical box with removable side panels and tempered steel clips BULB REQUIREMENTS: 1x GU10 Bi-Pin Base MR16 Shape 50W Halogen, or 7W LED, Light Bulb (sold separately)