The Fail-Safe VRMC, VRM and 2VRM Series fluorescent luminaires combine a low profile, surface modular design with the latest in energy-efficient technology. The energy saving ballast complies with Federal Energy Efficiency Standards, while a dihedral-recessed top allows for cooler operation. Other features include a die-formed housing, surface or stem mounting (single or continuous row), full seam-welded corners and a Quadra-sealed flat white steel door with mitered corners. The series are UL listed and CSA certified.