There are some other important factors affecting the quality of the total display system and therefore the cost:

a. All misc items and materials used for the module and cabinet production, such as module shelf plastic, power supply unit, thickness of the PCB and cables, etc.

b. Production machinery used, whether they are Lead-free equipment, etc.

c. In-house quality check equipment such as optical auto inspection machine checking soldering quality 100%

d. Factory QA and QC system and cost related, such as factory in-house testing procedures, standards, tested percentage and duration, etc.