The ballast is preferably mounted on {HEAD ~ the outside} of {TAIL ~ the fixture}, but not limited to that location, which is easily accessed for replacement or maintenance, and can be described as “snap in and snap out.” 
The ballast is preferably mounted on { HEAD ~ the outside } of { TAIL ~ the fixture } , but not limited to that location , which is easily accessed for replacement or maintenance , and can be described as “ snap in and snap out . ”
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH