Frameless LED Light Box Building Before Delivery：In july,2017. we test a big fabric led light box before delivery, the light box size is 3000mm(L)x180mm(W)x5000mm(H). To ensure stability and safety,we use a big "T" shape galvanized base and 60mm maxima aluminum extrusion to increase the stability of the base. In the side of the light box aluminum extrusion ,we arranged 90 led lights, an average of 18 meters to meet the customer requirements of the light intensity, LED light strip fixed with our special aluminum profile, unique design to increase the cooling area. after the successful test, we send the photos to my customer, he is very satisfied with our work.