1.over 90% Uniformity 2.Adopt high purity optical acrylic sheet and high-tech laser-dotting tech. 3.LED source High Luminosity Slim Light box:Ultra-slim, Ultra-shine, energy-saving, even luminosity, durable,fashionable, never yellowed, easy intallment and maintainence. Single side or double side, differnt size.1. Adopt high purity optical acrylic sheet and high-tech laser guidence moulding ...