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Lumens per square foot?
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BobK207
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Lumens per square foot?
wrote:
I learened TONS about what was needed in my shop the FIRST time I tried
working much in there.
Set up a test, do the job, add lights till your satisfiued add 25%,
since new bulbs always dim over time.
the briter the better, have 3 switches, one is I need to walkl thru
here and not trip over something
number 2 switch I need to see good enough to look for stuff
number 3 I have a detailed project
this way you dont waste energy, and bulb life of the briter ones is way
longer.
fluroscents are ideal buy good ones not the cheap ones.
The suggested of having switched levels of lghting is a good one, that
way you don't have light for surgery when you've just taking out the
trash.
Suggested light levels (in foot candles)
Hallways or corridors 10 general area average
Work and circulation areas 30 eneral area average
Normal office work 50 (40-60) Measured at work surface
Prolonged office work 75 (55-90) Measured at work surface
Visually difficult work 100 (80-210) Measured at work surface
A rough rule of thumb is about 2 watts fluorescent per square foot of
work area. This will yield light that is adequate for general work (40
to 60) any boost above that could be handled with task lighting or
extra fixtures.
YMMV as the specfic conditions can influence final lighting results
(ceilign height, paint color, fixture type)
cheers
Bob
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