Screw frame ultra thin light boxes are a serie of widely used ultra thin light boxes made of high quality material such as aluminum frame with special designing construction for the protection of the light boxes and the stylish outlook.they are very energy-saving light boxes displays that only consume 22% of the traditional light boxes or  less but have much longer life span for your displays plus we give you one year of warranty and extra components free for all our products.these products can be used for up to 10 years if powered by LED with very little maintenance comparing to the traditional light boxes.these innovative ultra light boxes are very elegant and stylish only 2.7 cm in thickness for single sided  light boxes.