... laser-dotting tech. 3.LED source High Luminosity Slim LED Light box: Ultra-slim, Ultra-shine, energy-saving, even ... Higher operating rate and conversion rate of light power, more brighter under the same light source condition6. Largest Size: 2m*4m ... .Different varieties and specifications: water-proof, wooden veins, lock style, etc. can be supplied. Slim TypeModelOpen StyleLight SourceFrame Width ...