NaturaLED Troffers come in 2x2 and 2x4 for easy installation into bar and grid ceilings. The mounting can fit for both 1" and 9/16" T-bar grids. 120-277 input voltage, operating temperature of -4 - 104 F, dimmable 0-10V, with a powerfactor of >0.9.
Feit Electric LED troffers can be mounted as a ceiling flush mount in T-Bar ceilings. Ultra thin with a backlit design and frosted acrylic lens.