40X60CM Ultra-thin LED writing board

40x60cm Ultra-thin LED writing board      Product name: LED Writing Board      Our normal sizes are 20*30, 25*35, 30*40,40*60, 50*70,60*80,30*80,60*100cm  Free accessories: power adapter, remote control, controller, cleaning cloth and a white color marker for each board.      Parameter:      * Power supply: Input: AC 110V-220V; Output: DC12V/1A    * Writing board voltage: DC 12V/1A    * Temperature and humidity: Temperature: -40~60, humidity: <90%RH  Characteristics:     * The frame with high-strength aluminum alloy,designed and molded by ourselves, with thickness reach to 1.2mm      (most of others' frames thickness reach to 0.8mm to 1.0mm in the markets). With the small pieces of oxide      surface treatment,the frames can be anti-aging, cannot fade and grin commissure.    * Original imported double-sided hardened acrylic plate, which is much lighter than other plates,the surface      hardness reach to 5H make it has good scratch and beat resistance(which can insure the safety of       transportation and application),with high transmission,the surface of the plate has brightness of the balance      without darkness, when use the highlighters draw something on the surface of the plate will not leave       indelible imprint and not penetrate into the plate.(Original acrylic plate 's hardening UV coating density       is greater than the density of highlighter ink resin penetration and therefore will not produce the phenomenon      of imprinting).    * The manul&remote controller researched and developed by ourselves,which up to 48 kinds of unrepeated variable      light pattern, there is no same product among the market.     * High-brightness SMD Chip 5050 (RGB) full color LED light source,no light attenuation, warranty to 50000       hours.(Brightness and color are debug by our own engineers.),while most of which are bought with ready-made       light bars.    * Our adapted power with IC solution, with circuit protection, output current and voltage are stable, if