# How do you calculate how many LED lights do I need?

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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.

## How do I know what size LED lights to buy?

When buying LED strip lights, it is important to look at the number of LEDs per length. For brighter output and higher light quality you should look for the strip lights that have the highest number of LEDs per Foot (Meter, Yard, etc).

## How do you calculate lighting requirements?

Planning: HOW MUCH LIGHT DOES MY ROOM NEED?

1. Measure the length and width of your room.
2. Multiply the length by the width in metres.
3. Multiply this number by 25.
4. The resulting number is the recommended amount of standard watts.
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## How do you calculate the number of light fixtures in a room?

Calculation in 8 steps

1. Total wattage of fixtures: Total wattage of fixtures = Number of lamps x each lamp’s watt. Total wattage of fixtures = 2 × 32 = 64 Watt.
2. Lumen per fixtures. Lumen per fixtures = Lumen efficiency (Lumen per Watt) x each fixture’s watt. Lumen per fixtures = 85 x 64 = 5440 Lumen.
3. Number of fixtures.

18 авг. 2014 г.

## How many lights do I need per square foot?

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.

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

Choose one that will accommodate the height of your ceiling or the size of your wall. 4-inch and 5-inch fixtures are great in kitchens for providing overhead countertop lighting. 6-inch fixtures are most common for general lighting purposes. 7- to 9-inch fixtures will create a wider wash of light.

## How bright is a 30 watt LED light?

How bright is a 30w LED floodlight? A 30w LED floodlight is usually equal to a 300w halogen floodlight. Top-spec 30w LED floodlights such as Osram are 100 lumens per watt, but not all lower-spec 30w LED floodlights are as bright. Lights are measured in lumens, and higher lumens generally means a better LED.

## How many can lights for a 12×12 room?

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.

## How many LED lights can be on a 15 amp circuit?

Each CFL or LED bulb typically gives the same amount of light as a 60-watt incandescent bulb while drawing 10 watts or less, which is equivalent to a current draw of 1/12 amp. Thus a 15-amp circuit can safely control 180 or more fixtures that use CFL or LED bulbs.

## How many downlights do I need calculator?

A general rule of thumb for spacing your downlights is to take the height of your ceiling and divide by 2. For example, if your ceiling is 8 feet high, then your downlights should be around 4 feet apart from each other.

## How do you calculate light spacing?

A good general rule for placement is to divide the height of the ceiling by two. The result is the amount of space to leave between each light. For example, recessed lighting spacing for an 8-foot-high ceiling would be 4 feet between each light. This will provide good spacing for general room lighting.

## How do you measure a room for LED strip lights?

Use a measuring tape to measure your intended lit space, writing down the measurements so you don’t forget them. For example, if you’re putting the light strip along the perimeter of a room that has 4 walls that are 12 ft (3.7 m) in width, you would need a strip of lights that’s at least 48 ft (15 m) long.

## How many watts is 5000 lumens?

For the average living room of 250 square feet, you’ll need 5,000 lumens as your primary light source (20 lumens x 250 square feet), equivalent to about five 100 watt incandescent light bulbs, five 23 watt CFLs, or eight 10 watt LED light bulbs.

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## How many lumens does a ceiling light need?

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.

## How many lumens does a shower light need?

bathroom? The only light will be above the mirror over the vanity. A useful rule of thumb for bath vanities is to use a minimum of two 60-watt incandescent bulbs, which typically produce approximately 800 lumens each for a total of 1,600 lumens.

## What color LED light is best for kitchen?

Warm white (3,000 to 4,000 Kelvin) is more yellowish-white. These bulbs are best suited for kitchens and bathrooms. Bright white (4,000 to 5,000 Kelvin) is between white and blue tones.