How many foot candles is 1000 lumens?
A lumen is a way of measuring how much light gets to what you want to light. 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.
How many foot candles is 5000 lumens?
The Art of Lighting Art 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).
How many foot candles do I need?
Public areas surrounded by dark areas will generally require 2 to 5 foot-candles, or 20 to 50 lux, while typical offices and classrooms without highly detailed work will need 10 to 20 foot-candles, or 200 lux.
How many watts is a foot-candle?
Foot-candle to Watt/sq. Cm (at 555 Nm) Conversion Table
| Foot-candle [ft*c, Fc] | Watt/sq. Cm (at 555 Nm) |
|---|---|
| 1 ft*c, fc | 1.5759751708199E-6 watt/sq. cm (at 555 nm) |
| 2 ft*c, fc | 3.1519503416398E-6 watt/sq. cm (at 555 nm) |
| 3 ft*c, fc | 4.7279255124597E-6 watt/sq. cm (at 555 nm) |
| 5 ft*c, fc | 7.8798758540995E-6 watt/sq. cm (at 555 nm) |
How many lumens is a 10×10 room?
This will depend on the individual room and what it’s used for. 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.
How is foot candles measured?
A foot-candle equals one lumen per square foot. Using the metric system, a lumen is measured by a square meter or a lux. Thus a foot-candle is equivalent to approximately 10 lux or 10.57 lux.
How many lumens is a candle?
12.57 lumens
Since the area of a sphere is 12.57 times the radius, it follows that one candle has the power of 12.57 lumens. It is important to remember that a lumen is like an energy source. When the lumens are directed onto or through an area, you get lumens per square foot or footcandles.
How many lumens is a 12×12 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.
How do you convert lumens to foot candles?
The foot-candles measurement is equal to lumens per square foot, so to convert from foot-candles to lumens, you must simply make the conversion from square feet to square meters.
How many lumens are in a foot candle?
A foot-candle equals 1 lumen per square foot. The international standard (SI) counterpart of the foot-candle is the “lux.”. Indoor light fixtures typically provide light outputs ranging from 50 to 10,000 lumens.
How do you calculate lumens?
Measure the length and width of a room and multiply the measurements together. For example, a 15 by 20 metre room has an area of 300 square metres. Calculate the lumens needed to achieve the required lighting level. Multiply the intensity in lux per square metre by the area of the room in square metres.
How many lumens per foot?
Desks and Task Lighting: 50 Lumens per Square Foot. 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 .