... 3.100000hr lifespan 4.Reliable quality Hot Sale Full Color LED Display Detail Descriptionph20 pixel:1r1g1b module size:320X160ph22 pixel ... non-linear grey correction ,with red,green,blue 8 calibration curves of each color/poleContrast ratio:greater than 150: ... Effect Lights,Projectors,intelligent lights, disco lights,smaze machine,Outdoor Lights,search light,Fog Machine, Bubble Machine, Snow Machine, ...