... 3.waterproof,high brightness 4.outer lighting Backlight LED Outdoors Sign with good qualityOther names: Channel letter signage, LED signage, LED ... : 304#stainless steel on side and front, and acrylic or resin on back.2. Any fonts, different colors, sizes and styles ... hot to 60 degrees.9. Various lamp and acrylic and resin colors: White, blue, red, yellow, orange...(RGB color LED letters ...