Usually the IR marked cards are with Infrared ink marks on the back, which are mainly read by the related IR camera. With the IR camera lens on the ceiling lamp to see the IR playing cards on poker table, we can see the IR marks clearly on the screen like TV, computer or phone. Just like with the normal monitor, you can see every hand's cards and all those on the table.
This black plastic ceiling lamp IR camera can be perfectly hidden inside the lamp if you follow our installation method. The ceiling lamp focusing function IR camera is using direct current. It means that you can use it in poker game as long as you like. There is no limited using time for this infrared marked cards camera. There is even backup power for this ceiling lamp IR camera.
The ceiling lamp can be a rotatable focusing effect IR camera that can focusing the hidden marks automatically. So you don't need to worry about the marks being unclear on the far position.