WE-EF / 145-9479 Wallwash lens IO-20 Specifically developed for the lighting of architectural surfaces, in combination with WE-EF [M] symmetric medium beam LED optics. Luminaires fitted with the I0-20 wallwash lens are typically positioned at 0.125 x h away from the target surface and spaced up to 1.75 x d apart: h = height of wall/target surface d = 0.125 x h = distance from the wall/target surface s = 1.75 x d = spacing between luminaires The IO-20 LED wallwash lens is factory-installed within the luminaire. Specifications: C1: 97