I would like to hang a few 4 foot fluorescent shop lights. Preferred hanger
would be 1/2" conduit, vertical, of course. Is there a conduit fitting
available that can take the weight of the fixture (2 conduits each holding
half a fixture). I know that some of the old timers had 1/2" conduit
fittings that could be crimped on. All I can find today for conduit
fittings is the simple sleeve with the set screw. Afraid it might pull
Would like to go conduit instead of chain due to the cost of chain. Conduit
is VERY inexpensive compared to other alternatives.
Maybe I can get enough bite to put 1/2" NPT threads on the conduit???
Hint, most all 4 foot units you will find will be cheaply made.
Consider the 8 foot jobs and buy quality. All the cheap ones have problems
of noise, less efficiency, lamp life, cold temperature operation, short
ballast life, etc..
Thanks for the suggestions. In my history (working at gas stations 40 plus
years ago) the 8 foot fixtures were the one's that always buzzed. Maybe
things have changed. I was thinking of buying the 4 foot T-11, or whatever,
higher end fixtures.
Comments on above encouraged and appreciated.
I have replaced more 8 footers than 4 footers, and ballasts also. The 4
footers are cost effective and you don't need a truck to buy bulbs.
no flourescents appreciate the cold.
I have about 18 quad four footers at work, and replaced about 2/3 of the
bulbs in 2003, and have about 6 or 8 bad bulbs right now, and I'll bet
they are the ones wehre I ran out of bulbs.
My garage at home has 9 lowe's 4 footers and they have wierd thing. If
you are standing there after you turn out the lights in the pitch dark,
you will see some of the fixtures flash about 5 or more seconds after
you turn the lights out.
my previous shop I had 10 sears 4 footers, circa 1988, and replaced the
bulbs for dimness after ~ten years, with no failures.
Regardless of what size tube (4 or 8 foot), get lights with _electronic_
ballasts, generally found in fixtures that use the smaller diameter T-8
Electronic ballasts are less likely to buzz (tho' the cheap ones at Home
Cheapo do buzz) and they don't flicker because the operating frequency is so
I had a set of the cheap fluorescent ballasts that you would get from
Lowes or anywhere in else in my kitchen and garage for 24 years. I just
had to replace both of them last weekend. They go for $20 a piece a
Lowes for a 4' frame + ballast. YMMV
I bought a pair of 4 foot shop lights a few years ago at Home Depot
with electronic ballast that don't make a sound, are plenty
efficient, excellent lamp life, and no problems in sub-zero temps.
They are also instant on, which is kind of nice. I bought these to
replace the old, buzzy, summer only units I had in my garage. I
replaced the tubes in those twice a year.
Common sense and electrical building code would suggest that it's not safe to
have conduit carry the load. Conduit is strictly for protecting the wires
and, sometimes, providing a ground path.
Use chain or down-rods, as suggested by others. Once hung, use flexible,
armored cable for electric supply.
Certainly better but does he really mean conduit or is he referring to
EMT? If conduit (the thickness of water pipe but not water pipe) I
can't see why it wouldn't be adequate. Another alternative is to use
tubing specifically designed for the purpose. Google "Grand Brass" for
lots of choices. Or, if you don't like that use ceiling-fan support
tubing which would be easier to obtain.
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