... ) easy to change the photograph 1, Item No.: Single Sided LED Light Box. 2, Frame: Aluminium Alloy (Four Clip Type). 3 ... , Thickness: 25mm, Frame Width: 22mm. 5, Light Source: led, Long Life Span of LED:above 70,000 hours. 6, Delivery Time: within ... :How to change poster:How to connect:Lighting: aluminium profile led sign light box