... , school. Waterproof, high quality Luminous Letter / LED Sign letter / Advertising sign Used of shops, hotel, hospital, school.Waterproof, high ... . Dimension: various size available and customized welcome3. Light source: LED light, low power consumption4. Fashionable, slap-up5. Acrylic ... . High compressive strength, solid and practical, high light transmittance, saving power.7. Energy saving and easy ...