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When deciding how many recessed lights to use in a room for general lighting, consider the size of the room and the diameter of the lights. In general, if you're using 4-inch lights, install one light for every 4 square feet of ceiling. With 5-inch lights, install one light for every 5 square feet. If your ceilings are higher than 8 or 9 feet, you may need to use more lights and space them closer together. You should also use more lights in areas that need task lighting and fewer in areas that only need general lighting. Because other factors can affect the amount of light provided by recessed lights, consider buying one light and installing it for testing. Measuring the circle of light that it casts can help you determine the number of recessed lights you'll need for the entire room. Forte Electric: How to Lay Out Recessed Cans in the Ceiling Home Remodeling Help Guide: How Many Recessed Lights Should Be in a Room?On One Hand: Consider the Room and Light Size
On the Other: Consider Ceiling Height and Light Level
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by Swami_Rick on April 3rd, 2011
365, one for each day of the year.
by Jesse_B9472 on April 3rd, 2011
I'm not an expert, but that doesn't sound right. A light for every 4 square feet of ceiling? So if my room is 100 square feet I need 25 lights?
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