1.Long life span LED light 2.Energy-saving, fashion, 3.easy to change picture ... ProductLED Ultra slim Light BoxMaterialAluminium frame, Crystal ,optical panel light ,LED strip or T4 /T5 fluorescent lamp Technics1) Snap frame/overall ... :12v,24v ,110v,220VSizeMaximum size 3meterX 2meter Minimum size 20cm*30cm size Customize size are availableCertificationCE, UL , ROHS, SASOPacking detail air ...