Planted Tank Guru
Join Date: Jan 2010
Location: Contra Costa CA
A 4' light would be best with 2 supports.
justlikeapill, how is the conduit attached or supported? Omega clamps on the stand? Tee and legs on the floor? Other? Any way to get a picture of this?
'cable clamp thingies' might be Zip ties, or could be sort of a cross between a chain (plastic) and a zip tie. Have a look in the electrical section, but also look elsewhere. Most hardware stores will sell several sorts of chain and cable by the foot. Ask how to cut these, and how to connect them to make loops.
Make the EMT (Electrical conduit) sort of taller than you would initially think so there is more room to raise and lower the light.
Chain with an S hook is pretty good. You can adjust the height of the fixture when you need to get to the tank for cleaning or planting, and you can raise or lower the light for optimum plant growth. You do not need massive chains for this. Not little jewelry stuff, but fairly fine hardware chain is plenty strong enough for a light fixture.
The electrical cord for the light might be run through the EMT, (may look better) but it is not a thing for anyone who does not understand electricity. It involves cutting the cord and reconnecting it.
Easiest way to handle the cord is to zip tie it to the EMT.