Para-lite 2 is a larger (1-1/2" x 1-1/2" x 1") square cell that¿s versatile plastic parabolic louver with an even overall low brightness appearance. This louver is specular gold with a 142-degree angle of light. This parabolic louver is for 2' x 4' fluorescent fixture and is easy to install. It just lays in the door frame. Options include, specular silver, molded flange cut to fit 2' x 2' fluorescent fixture also cut to fit 1' x 4' fluorescent fixture. Prices are based on minimum order of 20 pieces. Special freight charges must be added. Call for Freight Charges.