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You may want to add under cabinet lighting, or pendant lights over the island to bring the lighting closer to the work area. Task lighting is extra lighting used to highlight spaces where you need either extra light, or specialized lighting. Step 5: Now do the same for the width of the room.If you do, you end up with bright spots between the lights and dark edges. Step 4: Calculating distance of lights from walls: (Note: The can lights near the wall are 1/2 the measurement between the other can lights distance. Keep each light close to 3 feet away from the walls or corners - we don't want to cast shadows!) Don't install recessed lighting with equal spacing between the lights and the walls.Example: 20' long room divided by 3 cans = 7'6" between each light, note see step 4. Step 3: Room length divided by # of lights in that row = distance between light units in that row.Step 2: Measure the length of the room in feet.Or, if you want general lighting, start in the middle and work outwards.Step 1: Pick a starting point, where do you want your most important light placed? Then arrange all the lights an equal distance from that light.​ Now we will calculate the spacing between each light. Here's a great example, the yellow dots show the recessed lights, the red dots show the pendant lights: The cans / pots / recessed lights should be evenly distributed around the room, usually they are in rows with an equal number of cans in each row. Part B: Draw up a ceiling diagram (reflected ceiling plan) showing the amount of lights you need (Part A formula). Total wattage divided by 60 watts (or whichever wattage you select) = total amount of recessed can lights.Įxample: 240 square foot room x 1.5 = 360 divided by 60 (the bulb wattage I'd like to use) = 6 recessed lights needed. ( 40 watt, 60 watt, 75 watt, 100 watt etc.) = amount of total recessed lights you will need. Step 3: Total wattage, divided by the bulb wattage you plan to use, ie.

They have a tighter beam control which will get more of the light down from the ceiling to the surface plane. If the lights will be installed in a ceiling taller than 16-feet, you may also want to use PAR type light bulbs. (Note in some areas where you need a lot of light, or have a very high ceiling multiply by 3).