... fluorescent tubes which illuminate the Elit acrylic sheet from the side for optimum illumination. Tianzhong brand Led light box, High ... ,AC 50-60 hz).· Power: AC adaptor and DC battery two ways· Frame: Acylic and Aluminium material.· Working hour : 50, ... · Sizes: A1-A4, or larger, customer's size· Viewing:single side , double side· Customized : Customers designs, sizes & styles are welcome.· Led light ...