Top embossments for strength.

Ballast embossment provides full contact for superior heat dissipation.

Strengthening ribs on sides.

Full access plate with double KOs. Screws included.

Two built in T-bar clips on wide models.

End plate attachment with screws, not tabs.

Upturned side rail edge for rigidity and safer handling.

Mitered door corners for better fit than overlap corners.

Improved large cam latches open door with ease. No tools needed!

Full depth door accepts louver without notching.

Built-in lens retainers.

Door end screws, not tabs, for strength and easy lens replacement.

Built-in door hinge on side rail. No pop rivets.

Ballast cover tabs prevent pinched wires.

Metal light traps instead of gasket that deteriorates.

Passes torque test for strength and minimal overall sag.

Superb lamp spacing: 4" centers on 4-lamp fixtures. Allows lamp removal in any order.

Lamp-pin slots for ease of lamp installation.

Socket bar held in place with slot tab - removable from inside fixture.

Hemmed end plate. Double-thick fold adds strength and eliminates sharp edge.

Machine-installed shunts eliminate loose socket bar connections on electronic troffers.