1. 1.Magnetic column for LED display screen
2. 2.5V 40A switch power supply
3. 3.Special ribbon cable for LED display screen
4. 4.Power cable for LED display screen
5. 5.Frame and back bar for LED display screen
6. 6.Corner piece for LED display screen
7. 7.Control system for LED display screen

Steps for installing LED display screen:

1. 1.First, assemble the four sides of the frame with four elbow fittings.
2. 2.Place the unit boards in the frame according to the direction.
3. 3.Install the back bar between the boards and suck them together.