... of colors are available.1) Sizes available: 1.9mm Φ3.0,Φ3.7,Φ5.0,Φ7.62, Φ10 Dots :5" x 8", 5" x 7", 8" x 8 ... /GrayEmitting ColorSuper Bright RedPixels Pitch More Specifications:Inter size: φ1.9mm, φ3mm, φ3.7, φ 4.8, φ5mm, φ10mmouter size:17.8 x 12 ... .80mm76.00x106.50mm etc.For 5x8 dot matrix Single color, dual color, full color (RGB Color)23.50x37.60mm37.80x60.60mm57 ...