One-piece, seam-welded 20-gauge CRS. Base provided with two-point mounting holes and one wireway hole. White TGIC polyester powder coat 5-stage pre-treatment. Salt spray test: 1,000 hours; Reflectance: 92{04aef197e2a33ee94af7b49af44700ef917df47392523dfa0075c5fa9ebd8a96}. Lens is positioned in baseplate channels and retained with stainless steel fastener. Base mounts flush to ceiling or wall surface.