... guide panel. HS-double side led display boardFeature:made of high-grade aluminium alloy frame, colorful LED lights, Mitsubishi optical light ... be wiped off easily;Visual effect:dazzling colors, flashing screen, capture customer's attension directly;Fluorescence:the letters and ... , long life span;Application:for the signs and promoting AD with contents changed frequently, such as: bar, KTV, disco, ...