Diffuser: Injection moulded opal acrylic with an etched lower band.Suspension: Twin stainless steel cables.Power cable: Silver braided.Disc: Aluminum plate.Finish: Metallic silver powder coated paint.Reflector (optional): Aluminum, frosted finish with vertical facets.Drivers: HPF electronic, 120/277V. 0-10V,1% dimming standard.Remote emergency system: Emergency option provides a 1.5 hour emergency lighting facility. The remote system includes the inverter module, NiCad batteries and a remote wall/ceiling LED charge indicator and test switch (maximum distance between wall/ceiling plate and luminaire is 4.5m/15’). Test switch fits a single gang box (not supplied).Mechanical: Mounts directly to a junction box (by others). Mounting hardware (by others).Approvals: ETL.