... crystal light box 1.Transparent acrylic panel 2.90 flash modes neon effect 3.14mm aluminium ... slim crystal light box1.Transparent acrylic panel2.90 flash modes neon effect3.14mm aluminium alloy ... -span3. More flash modes--Multi color and 90 kinds of flash modes4. Flash modes control ... store, haird boutique, commercial centers, night market etc.2. For notice in school, companies, classroom, metrostation, ...