1.environment friendly light box 2.low power,no heat/radiat,durable,thin,safe,vivid flash ... friendly poster light box (CE, RoHS, 0.15-0.5 mm thick, 80-130cd/m2, 3,000-5,000 hours)Your new ... ultra-thin, and the thickness is 0.15-0.5 mm 2. It can be designed with any colour and size ... . 2. The EL logo can flash after turning on the switch. ...