What is the best way to mount tandem t-8 fixture to steel? I usualy but the fixtures end to end and mount them to 3/4 strut so i can span the rib that is in the steel I thought about usig jack chain and hooks? I also use 3/4 strut to run a 3/4 emt trunk line around the inside of the building up high and drop down with 1/2 to recp. any thoughts would be app.