Slim LED Light Box 1.Super Slim led light box. 2.30mm width.18mm thickness only. 3.Four sides clip frame. 4.SMD LED Light. Slim LED Light Box1. Item No.: RT-SL2. Graphic size: A0-A4, or customized size.3. SMD LED Light.4. Four sides aluminium clip frames.5. The slim led light box is widely use in business center,super market,bar,bank inn, exhibition. Slim LED Light Box, LED light box, Light box