Current levels at desktops are 48-50 foot candles
, says Kane.
An ingenious automatic control system limits the light levels to about 70 foot candles
when the building is in a cooling mode, and controls the lights so they are only used when daylight is insufficient.
For instance, in a laboratory situation, task lighting would incorporate fewer fixtures to place appropriate amounts of foot candles
over those tables and workstations where it is required, while lower levels of light would predominate elsewhere.
Intensity, he says, was increased from 6-8 foot candles
to 14-20 foot candles
Equipped with over 4,000 foot candles
of filtered light, this lamp also features a 3,000 Kelvin cool temperature and a 17 inch dual flex arm for ideal lighting focus.
0 Foot Candles
(54 Lux) o 5,580 ft2 (518 m2) at 10.
It emits 13,00 foot candles
, producing a color corrected, white light for truer representation of tissue color.
James Brimmer, Assistant Manager of Buildings and Grounds, measured an average classroom light level of between 45-50 foot candles
before the relamping.
The school swapped existing fixtures with Crees CXB Series in a 4000K color temperature, immediately boosting light levels from 30 to 70 foot candles
with improved color rendering, while cutting energy usage in half and offering zero maintenance requirements for years to come.