... 3.Super-thin,soft light 4. Maximum size:90cmX60cm el advertisement backlightWHAT IS EL?EL Operating Theory:EL is an equipment ... landing , recognized mark at night, field wire for leading.6. Advertisement Goods: Apply to goods promotion, propagation, vote file, car processing ... image such as the and marketing file and poster of cigarette, wine, soft drink, credit card.2. In the respects of ...