T5 Grounded Linkable Fluorescent T5 GROUNDED LINKABLE MIRCO FLUORESCENT fixture is a series of commercial grade linkable fixtures widely used in both residential and commercial applications using T5(5/8) fluorescent lamps. The instant start, silent electronic ballast is housed in an extruded aluminum housing. The lamp sockets that sit at each end of the fixture are on 0.50 in length, vastly saving space and reducing dark spots when linking fixtures. : LightingXP.com, Your Lighting Experts