2 x 4 Foot Concord G4 LED Center Basket Troffer, 5600 Lumen Max, Wattage and CCT Selectable, Dimmable, Emergency Backup, 120-277V Sensor:WareSense Blue - Bluetooth Motion Sensor (+$38.00) The emergency unit cover is

The emergency unit cover is constructed of high-impact-resistant polycarbonate and includes the necessary hardware for easy installation

die-cast aluminum housing aids in heat dissipation

Width 10˝

3 1/2″ for MC or BX installations

2 x 4 Foot Concord G4 LED Center Basket Troffer, 5600 Lumen Max, Wattage and CCT Selectable, Dimmable, Emergency Backup, 120-277V Sensor:WareSense Blue - Bluetooth Motion Sensor (+$38.00) The emergency unit cover isWareLight's basket troffer delivers unmatched performance and energy savings with superb flowing design. Featuring selectable wattage and CCT, these fixtures adopt the latest in optical and LED technologies to provide a single pleasant volumetric soft light that fills any interior space. The center basket design gives a larger, brighter, and more productive ambiance. Compare to MetalLux: 22CZ2 39 UNV L835 CD1 U 22CZ2 39HE UNV L835 CD1 U 22CZ2 39 UNV