I have a 16x24 basement shop I just finished off. Painted the floor an
off white and the walls a semi-gloss white. I then put in 12 4' double
bulb shop lights. Almost needed sunglasses to go in there. When I put
all the stuff in the shop it absorbed some light and now it's perfect.
BTW: 8 of the fixtures run right down the middle, side by side. The
other 4 are against the wall near the main tool to cut down on, or
eliminate, shadows. Working great for me.
firstname.lastname@example.org (Mike) wrote in message
If you need to wear an SPF 30 sunblock, you might have too much light
in the shop.
If your electrical utility calls and asks you to go in and watch TV for
a while so the steel fabrication shop down the highway can get some
welding done, you might have too much light in the shop.
If the neighbors are complaining about the glare, and it's noon on a
sunny July day, you might have too much light in the shop.
If you can hear the fluttering of the moths while using your shaper,
you might have too much light in the shop.
If you find you're really comfortable wearing welders' goggles while
turning pens on your Jet Mini, you might have too much light in the
If the rest of the neighborhood blacks out when you turn on the lights, you
might have too much light.
If the state has to build a new power plant just for you, you might have too
P.S. I have 2 8' lights with two tubes each, and 4 4' lights with 2 tubes
each in a two car garage and on occassion still find myself trying to find a
place that has better light .
Dave Balderstone wrote:
If the cops come knocking on your door and want to check
(cheque David) the basement for illegal farming activity,
you might have too much light in the shop.
On Fri, 15 Oct 2004 15:31:46 -0600, Dave Balderstone
If the Mounties raid your shop thinking it's a marijuana grow
operation, you might have too much light in the shop.
Replace "nonet" with "yukonomics" for real email address
Hi Mike. Well - I'm going to go against the grain a bit. I believe you can
install too much light. I'm in my 50's and I need more light every year,
but not all light is created equal. I don't find that having more ceiling
light is always the best answer. I'm finding I need more and more task
lighting and that the addition of more ceiling light is not the answer. If
I were you I'd go with less ceiling light and more provisions for task
lighting. Ceiling light suffers from shadows and reflections and there's
not much you can do about that. With task lighting you can control those
two issues. I'd go with providing for a well lit shop - probably not far
from what your electrician is suggesting, and then augment that in the areas
where I need it. Use multiple switches and switch your lights in banks as
other posters have suggested.
I realize you've probly already gotten the answer you were looking for,
There is or was a guy here on the group by the name of Lew Hodgett who
used to spec lighting for commercial applications, if I recall
correctly. Your question has come up many times in the past and Lew has
provided the figures and formulas to calculate the appropriate quantity
of watts for a shop. Here's a link to a google search on lew and
lighting - you might find some helpful info here:
Owen Lowe and his Fly-by-Night Copper Company
"To know the world intimately is the beginning of caring."
I don't see how. I've got 18 four foot 40 watt tubes in mine plus a double
flood light with a motion sensor in my two car garage / workshop. My shop is
lit up like a classroom. Sure makes things easier when I work at night.
I had qty 9, 8' dual tube fl. fixtures and one 4' dual tube fixture (HO,
cold start, high-end elec.ballast etc. etc. etc.. CRI of the bulbs was 92)
in my 20x20 shop. They were divided into two switched sets; one with 4, the
other had 6. I also had four skylights in there. The lights were all on all
the time I was in there. (pics at "old shop" at URL below). I'd do it again.
I still used "task" lighting on the bandsaw etc as well. Your Electrician
simply doesn't want to hang the lights...mine didn't either. I did it. Did I
say I'd do it again? <g!>
"Mike" < email@example.com> wrote in message
On 15 Oct 2004 10:25:36 GMT, firstname.lastname@example.org (Mike) wrote:
The machine shop where I work had a surplus in our maintenance budget many years
ago. Our then-general manager took it upon himself to 'upgrade' the lighting in
the building, which was in excess of 20,000 sq. ft. The former lighting was
continuous rows of 2-lite 8ft. flourescents spaced about 6 feet apart on the 13
foot high ceiling He directed the electricians to add more rows between the
existing ones, yielding rows 3 ft. apart. The machine operators all wear
baseball caps indoors now to shield their eyes from the glare. Our shop is
located across the street from the local electrical supply store, and the owner,
who I must say had to be thankful for our 'upgrade', said, "Geeze! Why didn't
you just take the roof off the building?"
We've also discovered that it costs more to dispose of used flourescent tubes
than to buy new ones.
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