... 3.OEM available 4.2-year warranty flash led board for window displayDetails of flash led board:Size --- 40cm×60cmBoard Material --- ... , triangular easel, remote controller, hanging chain, battery are optional Application:flash led board for window display is most often used in ... . Design Service 2. OEM Service 3. 2 years warranty of flash led board4. Custom size and logo available 5. From designing ...