One footcandle equals approximately 10 lux. Originally posted by The Troubleshooting Ninja: As long as you own a copy of Ghost 2003, 10, et cetera I would not feel too bad about getting the necessary files from someone on the various forums mentioned on Bart's site. No need to steal the application when the original poster can simply buy a copy of Ghost Solution Suite and get the ghost32.exe file and be legal. Last time we bough Solution Suite the price was $20 for the VOL media, and $4.16/seat for 25-99 seats and $3.10/seat for 100-249 seats. A footcandle is one lumen of light density per square foot. This is measured in lux (metric) or footcandles (English).Ī lux is one lumen per square meter. Illuminance is the amount of light measured on the work surface, such as a desk or counter in the lighted space. A 15 watt LED can output as much as 1620 lumens. An equivalent CFL (Compact Fluorescent Light) would be a 28 watt bulb at 1600 lumens. As new, more efficient lighting sources are developed, the general public will need to start learning how to measure light in lumens.įor example, a 100 watt incandescent bulb is about 1700 lumens. Everyone knows that a 100 watt bulb will pleasantly light a bedroom and that a 15 watt bulb is a good night light. Most people think of measuring light as how much light comes out of a traditional incandescent bulb. The Quantity of Light Luminous Flux or Light Output is the quantity of light that leaves the lamp. – How much light actually leaves the fixture and is directed towards the area or surface that needs to be illuminated? How does that affect my cost?.Are the blues really blue or are they washed out? Can I distinguish one item from another on a dark night with this light? – What is the color of the light itself and how does it affect what colors I actually see.– How much light comes out of the light and how much hits the surface you want to illuminate, such as a desk or countertop.What Kind of Light Do I Want? With the numerous advances in lighting technology, it can be hard to chose the right light source unless you understand the basics of how light is described and measured.
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