One-piece heavy duty die-cast, low-copper aluminum housing. Housing flange interlocks around lens producing maximum moisture deflection and resistance to prying. Housing providedwith four standoff mounting holes. One 3/4" IPS tapped hole on back of housing. Two 3/4" IPS tapped and plugged holes on sides of housing - see Cross Section/Details. Standard housing in dark bronze TGIC polyester powder coat - 5-stage pre-treatment.