Big LED display in Color LED Light

There are have four different structure size to fit into this panle, can be with 19cm big cover, as well as 19cm fan.

Lengthen Structure 8-3 & 9
Expansion Slot: 7 Slots
Structure Size (LxWxH): 446*200*438mm
Panel Length: Around 35-40mm
Material: 0.6mm SPCC + Printing Powder
Q'ty/20": 450PCS; Q'ty/40": 950PCS; Q'ty/40 HQ": 1170PCS

Standard Structure 8-1 & 8-2
Expansion Slot: 7 Slots
Structure Size (LxWxH): 400*200*438mm
Panel Length: Around 35-40mm
Material: 0.6mm SPCC + Printing Powder
Q'ty/20": 470PCS; Q'ty/40": 980PCS; Q'ty/40 HQ": 1180PCS