Lanzhou Olympic Sports Center Main Gymnasium (Basketball mode)

We installed many complex indoor arena which have 10000 seats for professional games to match mutiple events such as basketball, valeyball, badminton, rooler skate etc.  Basketball could be the major ones either FIBA standard, NBA standard or some local standard worldwide. Besides light level requirements we need to match, it is very critical that avoiding the luminairs aiming to the screen surface directly above the field central.