11 key questions before buying a LED display as below:

1, The dead rate of LEDs in per square meter.

Is it one in a million or one in a hundred million?

2, Are you LED display trading companies or LED display manufacturers?

3, The price is VIP price or non-VIP price?

4, Do you have VIP service? What is your VIP service?

5, The price is based on CIF term or FOB term?

6, The price is based on 3-year warranty or 5-year warranty?

7, How do you do LED display testing? 72 hours, 96 hours, or 196 hours? 

8, What is the temperature of the LED display when it works over 8 hours?

9, Can you help me to save 10% to 30% cost a year?

10, If not changing the raw  meterial of LED display, can you help me save 20% cost?

11, Can you give me other 200 LED display manufacturers bosses contact information?

If your LED display suppliers give all answers to you directly, it means that he is very confident to his price and quality.

If your LED display suppliers would not like to answer all 11 questions mentioned above, it means that he is not confident to his price and quality.