Description Echo Velocity is a unique asymmetric T5 and T5HO luminaire that combines an architecturally pleasing form with a palette of optical options. Features Thermoset polyester powder coat finish standard.Thermally protected ballast.Extruded aluminum housing.Cast aluminum end caps.Aluminum cover fits over a standard 4" octagonal junction box.Field adjustable housing.Stainless steel external fasteners.Locks in desired orientation.Housing and mounting components painted to match, unless otherwise specified.Integral electronic ballast.Ballasts minimum start temperature is 0° F.Class "A" sound rated ballast.UL listed (US and Canada) for damp location. (Not recommended for exterior use)