4-side snap frame light box, Extremely rigid aluminium acrylic ... safer operation4.Aluminous alloy has been oxidation treated. Snap open frame, easy to change pictures5.LGP can be laser ... box, LED spotlight, LED bulb, LED tube, LED panel light ,LED downlight, LED tunnel light, LED street light ... , Light guide panel.We use finest material such as Cree, VisEra ,Osram ...