Before buying an LED display, we need to consider 100 key points.
What are they?
1, Working hours every day.
2, LED display voltage.
3, Back access, or front access.
4, LED display waterproof
5, Color temperature.
6, LED display brightness.
7, LED display heat cooling off.
8, LED display life time.
Another 92 key points will be list before June 18,2019.