LED and conventional lightening Polycarbonate, Acrylic or Pet-G sheets can be used. Policam has two different diffusion grades; 72% light transmission and 60% light transmission levels Share this: Facebook Twitter Google + Pinterest Email to a Friend Related Posts 01/21/2021 Major meeting of sign industry goes virtual in 2021 05/15/2018 Stop the sound of highways and railways! 04/23/2018 Pet-G Sheets are 60X higher impact resistant