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## How many can lights in a 20×20 room?

If you have a center light fixture, you should be able to use 4 inch line voltage cans or low voltage for supplemental lighting. I would go with **at least 8 three inch cans for a** 20 foot room.

## How much area does a 6 inch recessed light cover?

If a 6-inch light has a spacing criteria of 1.5 and the ceiling height is 8 feet, the maximum space between **each light should be 12 feet**. This formula is critical for lighting a space because if the lights are too far apart, they will look like spotlights with big shadows between each other.

## How many recessed lights do you need per square foot?

Measure your room to see how many fixtures you will need. A common rule of thumb is that you use **one recessed light for every 4 to 6 square feet of ceiling space**. Doing so provides even, overall illumination.

## How far apart should can lights be?

To 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 recessed 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.

## Can you have too many recessed lights?

It often seems that installing recessed lights is a cure all, but they cannot properly wash light upon walls and all dark corners, which would bounce reflective light into the room. In fact, using too many recessed light **may leave areas of your room dark** and may even cost you more on your electric bill.

## How do you calculate lighting for an area?

Lighting Calculation – Summary

**Multiply the area in square meters by the lux**, or the area in square feet by the footcandles. Work out how many bulbs you need. Divide the number of lumens by the number of lumens delivered by each bulb.