fluorescent led writing board with 4 Color LED(white+ red+green+blue) & 36 kinds of frequency Combination 4 colors twinkle in waves sequential from white-red-green-blue. Combination 4 colors twinkle in RGB color RGB color flashing speed(fast or slow) can be adjusted by a button. With 3.6V 1800mA LI Battery inside. The power charger with USB interface.
So beautiful!
ledwritingboard2012 3 months ago