Life span is everything. This is what QSTECH #LED DISPLAY# installed in Sydney, Australia back to year 2011. Just recently we help out our partners to recalibrate the LED wall again. What a white balance! After 8 years applications! I'm so proud of being part of QSTECH GROUP. We're ready to support partners in lifespan, Let's rock and roll! #Billboard Solution# #Sports Stadium LED Display Solution#