# How many pot lights do i need?

Publish Date : 2020-07-07 As lighting distributor we often receive this question that how many pot lights do I need? We had created a lighting calculator to calculate the need of lighting in a room as far as volume is concern but still few people don't get the right answer as they have some multiple issue with the lighting and they didn't get what calculator is actually stating for their problem. So today I decide to write a pattern for that.

Basically the accurate lighting or good lighting is the key of illuminate and enhance the beauty of any space, especially when it comes to pot lights/recessed lights. I'll guide you few steps, with the help of that you'll be able to know how many lights you need with the distance between each light.

Step 1: Measurement:

You need to take the actual measurement of your room, length x width x height. This can give you an idea how big is your room and height also let you know how powerful the lamp should be so that can cover the room and filled every space with the light. Now the next step is multiply the length with width.

Step 2: Wattage Calculation:

As you already have multiplied value of length with width now you need to multiply the answer with 1.5, this will allow you to know about the total wattage you need to illuminate the area with perfect light. For high ceiling area you need to multiply the answer with 3. (This was the reason we took height in measurement).

Step 3: Number of Lights:

Now we are on our main question's answer, how many lights do I need if I have a room of size 13'x20', well as per above details multiply 13x20=260, now 260x1.5 = 390.

With this number how we can get the actual number of lights we need, well the answer is really simple, now you need to check the wattage of the bulb you purchased or going to purchase, let say you have a bulb with 26 watt the formula to calculate the number of bulb is total/bulb wattage = answer. Let's do it 390/26 = 15. It means you need to add 15 bulbs of 26 watt to illuminate a 13' x 20' room.

This was the answer of the main problem that was how many lights do I need. Now the next thing people need to know is the spacing between each light. We will consider the spacing in rows.

Light Spacing in a Row:

This part will let you know how you can calculate the space between 2 lights to get the brightest light. This process will start when you pick a start point, means where you would like to place your first light.

You already have measurement of the room. Now decide how many rows you want to create. Divide the room length with number of rows. The answer would be the distance between 2 pot lights in feet. (Remember take the length in feet else the calculation will go wrong). The last but most important thing to know is the distance of a light from the wall. Well the simplest way to calculate this is, take half of the distance that you took for the rows like if the distance was 3 feet so the distance from wall will be 3/2 = 1.5.

Now repeat the same steps for width to complete the process.

The above article covered 2 of your main questions, 1: how many pot lights do I need or do anyone need for a room? And how much distance is appropriate between 2 recessed/pot lights to get the good lighting. Hope you liked the article, I'll write more about recessed/pot lights in future like the installation process and other things. You can leave the comment if want to know some specific things about any type of lighting.

Category :electricity
Author Website : Lumenco Inc (Recessed Lighting)  ### Distance Education Programs

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