... 2. full rgb led color&38 flashing modes 3.erasable,portable 1:LED Fluorescent Board have one-year ... text, images, unlimited use;3, The Fluorescent Board use security voltage 5V-12V DC power supply ... source color average, and with fluorescent pen random write, bright colors, such as neon light effect! ... or placed in shop windows, transparent glass doors on the new propaganda cupboard, goods counter, cash ...