Try making a blueprint of the room to pencil in exactly where you want the LED pot lights to go. Start by taking measurements of any furniture in the room and create paper shapes that are correctly scaled for the blueprint. This way, you will be able to see where the Light will fall. Starting with a focal point may be right for you, start at a particular spot in the room that needs a pot light directly above it, that should be your starting point. The situation that usually calls for focal lighting is fireplaces. Having the gimbal pot light above a fireplace allows you to throw accent lighting on the mantle to show off those family pictures or even just the amazing stonework of the fireplace. Determine how far apart to space your recessed lights, divide the height of the ceiling by two. If a room has an 8-foot ceiling, you should space your pot lights approximately 4 feet apart. If the ceiling is 10 feet, you'll want to put about 5 feet of space in between each fixture.
Use this rule as a baseline, however. Depending on the brightness or darkness of the décor in the room, the type and wattage of light being used, and the purpose of the recessed lights (general, task, or accent lighting), you may want to space the lights either closer together or further apart. To compensate for these issues, a smart strategy is to "overlight" the room with dimmable lights and then control the brightness. Be sure to place pot lights about three feet away from the wall. You must be careful to avoid creating shadows in any corner, as this will have the visual effect of lowering the ceiling. As long as the lights reflect on the wall at the appropriate distance, they will make the room seem brighter and larger.