0-10V dimming driver standard. Supports California Title 24 compliance. Safety cables attached to door frame and LED gear tray. 22 ga. cold rolled steel housing with louvered vents for heat removal (20 ga. C.R.S. and 0.040 aluminum housing available as specified). 20 ga. cold rolled steel door frame secured by T-hinges and positive spring loaded latches. One way polyurethane gasket standard. Clear prismatic acrylic lens standard.