outdoor led display screen 1) CE and FCC certificate 2) Competitive price and high quality ... adjustableFrame frequency≥60(frame/second)Refresh frequency≥480HzBlind dots ratio≤1/10000LED lamp life span≥100,000hoursMTTF≥10,000 hoursScreen temperature ... distance Super-5 categories:120m (no relay),Fiber-optical: multi-module 500m/single-module 10kmSignal inputDVI,COMPOSITE VIDEO,S-VIDEO,YUV,RF etc ...