Features: 
1.Economical and practical, with high cost-effectiveness, it is very suitable for small projects and beginners.
2.Constant current driving for uniform emission and low power consumption
3.Each led in each pixel can be replaced independently, reducing maintenance costs
4.The modified driver chip is a driver transistor designed specifically for led scanning screens, using the sop16 packaging form, with input open circuit, input lock self check function, and anti burning power pmos transistor
5.Led display screens can be used for various purposes and places. It can be used for advertising, banner displays, demonstrations, video displays, educational purposes, etc

parameters: 
Product name:indoor p4 small board
Application environment:indoor
Physical point spacing:4mm
Unit board size:128*128*15mm
Resolution:32*32=1024dots
Pixel spacing:4.0mm
Pixel density:62500 dots/㎡
Pixel composition:1r1g1b
Lamp tube packaging:smd2121
Structural feature:integrated light drive
Input voltage (dc):4.5-5v
Drive mode:sixteen sweeps (constant current)
Maximum current:≤2.0±0.3a
Maximum power of unit board:≤15w
Brightness:500/550cd/㎡
Screen vertical viewing angle:130±10°
Screen horizontal viewing angle:140±10°
Control method:computer control, point-to-point correspondence, video synchronization, real-time display
Working temperature range: -10 to 40℃

Package include:
Module*1
Power cord*1
Flat cable*1
Screw*4