... CE certificate 2.Competitive price&high quality 3.Adopt LED light source 4.90% uniformity 5.Easy ... to change pictures 1. Adopt high purity optical acrylic sheet and high-tech ... 90% ( ranks in the world)3. Frame: adopt high-tech rare earth Al alloy. High weatherability, ... : Ultra-slim, from 15-50mm8.Different varieties and specifications: water-proof, wooden veins, lock style, etc. ...