It designed for outdoor use, thickness is only 58mm. With double sided poster showing, constructed with durable material with lockable frame and adopts LGP (light guide panel) technology, it can withstand the elements in any type of weather. With swing-open frame with lock, it’s easy for graphic switch and it can protect your light box from theft and other damages. Using PC faceplate and weatherproof strips are for totally weatherproof. Distributed light from the edges to make sure there are no hot or cold spots or shadows.  It works as an effective advertising tool in outdoor places and on external walls for applications, such as petrol station forecourts, walkways, sport stadium, bus shelters and railway stations. This kind of light box can also be indoor use. It powered by LED or fluorescent tube (T4 /T5) for your options make your prints and graphics standout in high-traffic areas.