Gardco's low pressure sodium lighting luminaires combine one of the most efficient light sources available with advanced optical technology. Through our sharp cutoff reflector systems with wide, uniform and glare-free light distribution, these luminaires are unequaled in performance and efficiency by any other low pressure sodium unit. Two distribution patterns are available; a rectangular pattern for area applications (A) and an asymmetric distribution for perimeter lighting (P). The luminaires may be arm mounted (LA) or side mounted (LSA) on extruded aluminum arms.