# How do you calculate the lighting of a room?

Lighting Calculation – Summary

The typical rule-of-thumb is 24″ from each wall, and then 3-5 feet between cans. So in a 12′ room you’d probably want two rows of lights. Considering it is a bedroom and you don’t need it as bright as a kitchen, you can probably get away with 2 rows of 4 lights for a total of 8.

Also Know, how many lights do I need in a room? As a handy rule of thumb, a sitting room or bedroom will generally require around 10-20 lumens per square foot, while a bathroom or kitchen will need a stronger level of lighting, at around 70-80 lumens per square foot. To work out the lumens you need, simply multiply the square footage of the room by this figure.

Hereof, how many lights do I need per square foot?

For the average space of 250 square feet, you’ll need roughly 5,000 lumens as your primary light source (20 lumens x 250 square feet). In your dining room, you’ll want about 30 lumens per square foot on your dining table (to see, not examine, food), so if your table is 6 x 3 feet, that’s 540 lumens.

How do you space can lights in living room?

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.

### How many lights can I put on one switch?

A maximum of 96 lights you can connect in parallel but to prevent the risk of unnecessary sparks and arc when operating the switch with having moisture on the switch or you hand, you can connect less than the maximum or you can use several switches instead.

### How many can lights in living room?

Make a Plan Whatever new recessed lighting you add should work with your existing fixtures. 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.

### Is recessed lighting outdated?

5 Advantages of Recessed Canister Light Fixtures But recessed light fixtures usually are not very visible, making them a good choice where you want the light itself to be the design element, not the fixture hardware. The reason recessed lights never go out of style is that they have never really been in style.

### How many lumens do I need for a room?

To determine the needed lumens, you will need to multiply your room square footage by your room foot-candle requirement. For example, a 100 square foot living room, which needs 10-20 foot-candles, will need 1,000-2,000 lumens. A 100 square foot dining room, which needs 30-40 foot-candles, will need 3,000-4,000 lumens.

### Can you have too many recessed lights?

In fact, using too many recessed light may leave areas of your room dark and may even cost you more on your electric bill. An expert can help you plan for the right number of lights based on the size of the space and the technical aspects of the light fixtures in question.

### Should I use 4 or 6 recessed lights?

Size and Layering Size recommendations say to place 4-inch lamps 4 feet apart and 6-inch lamps 6 feet apart. However, these are general guidelines. Smaller task or accent lighting using 2-inch or 3-inch lamps can work in conjunction with well-placed general recessed lighting.

### How far apart do you put LED downlights?

Generally when installing LED downlights, it is recommended to install lights 1m from the walls and space the lights between 1.2m and 1.5m apart. Positioning can alter depending on the amount of light required and the design of the room, which should be taken into consideration when planning lighting positioning.

### How bright is 4500 lumens?

It’s so easy to install, you’ll be lighting up your task space in no time at all. It’s efficient too, using just 65 watts to generate 4500 lumens of bright, natural light at 5000 Kelvin. That’s the equivalent light output of ten 45 watt bulbs!

### How do you calculate lighting for an area?

Lighting Calculation – Summary Calculate the amount of lumens you need. 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.

### How many lumens is considered bright?

Bollard lights are a popular choice for effective path lighting. 100 lumens is considered bright enough for most walkways — including commercial properties. 100 lumens is equivalent to about 20 watts.

### How bright is 1800 lumens?

For instance: 40 Watt incandescent lamp produces only 380-460 lumens and uses 40 Watts of energy per hour. 100 Watt incandescent lamp produces 1700 – 1800 lumens and uses 100 Watts of energy per hour. Direct sunlight is around 100k lumens and uses no amount of energy per hour.

### How bright is a Footcandle?

What are footcandles? In lighting, footcandles are a unit of illuminance equal to 1 lumen per square foot of surface. Really, footcandles are an indirect measure of delivered lumens.

### Is 5000 lumens a lot?

For example, in a small room, 5000 lumens will feel a lot brighter to the eyes than in a larger room double that size. While a room of 250 square feet will usually require 5000 lumens, it is important to note this is for general lighting and you may still need to add additional light around the room.

### How bright is 2000 lumens?

Energy Star Bulbs Watts (energy usage) Lumens (light output) 75 1100 100 1600 125 2000 150 2600