The spare parts include LED module, power supply, cooling fan, control card, and 3% spare parts FREE OF CHARGE depending on the project. For instance, if the screen size is W 6.144 x H 3.072 meters, the LED modules quantity is W 32 x H 16 pcs for P6 type, then the LED modules we offer for free is 15 pcs. Some clients purchase some more LED modules as spare parts for speedy replacement so that the defective ones can be sent back for maintenance.