- How many foot candles do I need?
- How many lumens is a 30×40 shop?
- Is 3000 lumens too bright?
- How many watts is a foot candle?
- How many lumens does a shop need?
- How many foot candles do I need for a parking lot?
- How many foot candles are in a 100 watt bulb?
- What does 5 foot candles mean?
- What is the minimum lighting required by OSHA?
- How bright is 40 foot candles?
- How many lumens is 100 square feet?
- What’s the difference between lux and foot candles?
- Where can I find foot candles?
- How many foot candles does OSHA require?
- What is the recommended lighting level for offices?
- How much light is a foot candle?
- How many candlepower is a 60 watt bulb?
- What does foot candle mean?
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 lumens is a 30×40 shop?
30X40=1200sqft X 100 Lu = 120000 /2600 = 46 T8 32W tubes or 12 4 tube fixtures. 2600 lumens per 32W T8 tube is about average.
Is 3000 lumens too bright?
In other words, 3,000 lumens is meant to give a room a brighter light. This is not ideal if you have a small room and it’s a bedroom. You don’t want to blind your eyes when you’re about to go to bed. On the other hand, 2,000 lumens is ideal if you wish to light up a 200 square-foot living room.
How many watts is a foot candle?
You can also calculate the number of watts directly from the foot-candles by combining both equations and using the following: Watts = Foot Candles x 0.01609696 This is because 10.76 x 0.001496 = 0.01609696).
How many lumens does a shop need?
A general rule of thumb is to use 130 to 150 lumens per square foot of work space. For example, a 40-watt fluorescent bulb puts out about 2,200 lumens. A 60-watt incandescent bulb puts out about 800 lumens.
How many foot candles do I need for a parking lot?
Accordingto the website crimewise.com, the minimum recommended light intensity is 1 foot-candle. In areas where there is potential damage to vehicles, 2 foot-candles is recommended. These standards are averages although no area in the parking lot should have less than a quarter of the average lamination.
How many foot candles are in a 100 watt bulb?
400 foot candlesTheir efficiency is in the range of 4 lumens per watt. This means that a 100 watt bulb will generate 400 lumens – TOTAL. (Here’s the big leap) Now, if we COULD reflect all of that 400 lumens onto 1 square foot we would get a light intensity of 400 foot candles.
What does 5 foot candles mean?
Believe it or not, foot candles are the most common unit of measure used by lighting professionals to calculate light levels in businesses and outdoor spaces. In a nutshell, a foot candle is a measurement of light intensity and is defined as the illuminance on a one-square foot surface from a uniform source of light.
What is the minimum lighting required by OSHA?
General Lighting Requirements First-aid stations, offices, and infirmaries: 30 foot-candles. General construction plants and shops: 10 foot-candles. General construction area: 5 foot-candles. Warehouses, walkways, corridors, exits, and other indoor spaces: 5 foot-candles.
How bright is 40 foot candles?
In some areas, foot-candles will be higher than 40, and in other areas, it will be lower, but it will average out at 40. You’d need a fixture or multiple fixtures combined that will give you about 40 lumens of light per square foot.
How many lumens is 100 square feet?
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.
What’s the difference between lux and foot candles?
There is no difference between foot candles and lux in respect of what they measure. … The footcandle is an ‘imperial measurement’, while lux is a metric (or SI) measurement.
Where can I find foot candles?
Multiply the Length times the Width of the Room to get the Room Square Footage. For example, if the room is 10 feet wide and 10 feet long, the Room Square Footage will be 100 square feet. A foot-candle is how bright the light is one foot away from the source.
How many foot candles does OSHA require?
5 footFoot-Candles in the OSHA Standards. In standard 29 CFR 1926.56(a), OSHA lists the minimum amount of light for operating zones encountered in the construction industry. For warehouses and similar indoor spaces, this standard requires illumination of at least 5 foot-candles.
What is the recommended lighting level for offices?
What is the recommended lighting level for offices?Areas and activitiesIntensityRecommended LuxOffice in generalMedium250 – 500Waiting roomLow150 – 400Reception deskLow – Medium300Computer work stationLow – Medium300 – 5003 more rows•Apr 30, 2015
How much light is a foot candle?
A foot-candle equals one lumen per square foot. This is a British measurement. 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 candlepower is a 60 watt bulb?
Your average 60 watt household light bulb produces 650 to 700 lumens when burned under standardized conditions. Therefore you can estimate that a 60 watt household light bulb, burned under average household conditions might produce somewhere between 50 and 55 candle power, give or take…
What does foot candle mean?
A foot-candle (or foot-candle, fc, lm/ft2, or ft-c) is a measurement of light intensity. One foot-candle is defined as enough light to saturate a one-foot square with one lumen of light.