Now that you have figured out the number of lights needed for your space, it's time to work out where they should be positioned. This is ultimately determined by the downlight’s beam angle, as this will determine how far apart they are spaced. For general ambience, a room with standard ceiling heights (2.4-2.7m) should use downlights with a beam angle of at least 60 degrees or more, and ceilings higher than the standard should use downlights with less than a 50-degree angle.
In general, we would recommend placing your downlights at least 1m away from your walls to ensure no retrofitted shelving or furniture will interfere with the light source and create shadows. Downlights should be placed evenly throughout your room, with an interval of 1-1.5m apart. The goal of this is to allow an overlap of beams - ensuring full coverage. This calculation can be adjusted for personal preference, such as when trying to create drama within a living room or including any accent or statement lights.