We usually have stock for led modules and led displays. So we can accept sample order 1-1500pcs.

We have free warranty from 1-5years. Returned to the factory for free maintenance for life

So far have not agent.

Yes,you can insatll by yourself. we will provide the manu and some led display drawing to you.

Yes,we can send goods to your farward.

yes, you can install the led display to the wall.

Yes,we have front and back maintenance led module for led screen.

We have USB,RJ45,internet,Wifi,4G,RS232 and RS485 and APP, via PC or mobile phone to control and change the contect.

Yes,we can custom led sign with different size,shape,pitch….

Usually about 15days after receiving deposit.

(1)  Check signal DVI or HDMI or video processor.
(2) Chck power and power supply
(3)  Chck brightness 0-100.
(4)  Check the model is black mode or not.

What’s the difference between synchronous control system and  asynchronous control system?

Synchronous & asynchronous refers to the controlling PC working together with the LED display or not. Synchronous means when the LED display screen system is working, the controlling PC must open and cannot be closed. Asynchronous control system means when the LED display is working, the controlling PC can be closed and has not further relationship with the LED sign; the LED display can work independently after the basic set up and the program making.