Spacing for recessed lighting varies according to space and need, but a standard rule is to place 4-inch fixtures a minimum of 4 feet apart and 6-inch fixtures approximately 6 feet apart. When using recessed lights to highlight objects such as paintings or photographs, place the fixtures from 12 to 18 inches in front of the object.
Choose adjustable recessed lights to control the direction of the beam, and opt for recessed reflectors for maximum light coverage in a room. Check local building codes for potential permit requirements when installing or updating recessed lighting. Hire a qualified electrician if the job requires special wiring, bulbs, housings or transformers.