Dali supports 128 Dali balls.But not connect to 128 Balls

[admin]

Each DALI line supports up to 64 ballasts. It's possible to connect more but you won't be able to address them because only 64 short addresses are available. In some cases this is fine if you just need to control all ballasts at once using broadcast messages.
Another thing to consider is power supply wattage and how much each ballast consumes. The signal might degrade to a point where communication stops working if the line is overloaded.