... For shops, hotels etc, 3)Waterproof 4)Easy installation LED acrylic sign letters:Cosun Sign illuminate your life! 1 Material ... brushed stainless steel side and acrylic in front. 2ProcessLaser cutting, professional polishing, skilled welding, ... homogeneous painting, strict detection and carefully assembly 3 Light Source LED module built in, Waterproof, 95% energy saving, corrosion ...