... frame, T4/5 OR LED lighting source. Ultra slim, four side open.(4) Long life time 60000HOURS,3W-6W/light. Tianzhong ... fluorescent tubes which illuminate the Elit acrylic sheet from the side for optimum illumination. Tianzhong brand Led light box, High ... · Sizes: A1-A4, or larger, customer's size· Viewing:single side , double side· Customized : Customers designs, sizes & styles are welcome.· Led light ...