... single red cost ,Website:http://www.hll-leddispaly.com, full color effect2. Timing Advantages: At present can get more profit ... . Effect Advantages: Can instead of all kind of P10 single color screen, such as red, green, blue, white, purple colors5. Special ... Card Advantages: Same cost as single color or tri-color control card, can fit for any screen except 7 color screen