1. APP controlled via WiFi, compatible with multiple Art-Net computer software ; 2. BluFi configuration using dual mode chip(WIFI&BT); 3. Support AP mode and STA mode; 4. Two layout setting method: regular rectangle layout setting and importing DXF files ; 5. Support two layers overlay, built-in multiple types of effect layers: text layer, music effect layer...; The effect layers support a variety of custom parameters: direction, width, color, length, shape...; Real-time preview, support recording the current scene to the controller storage; Support change device name ,reorder the RGB order, and OTA update. Working temperature : -20Celsius-60Celsius; Working Voltage : DC5V-24V; Working Current : 25mA-130mA; Flash Capacity : 128M; Output signal: 4-port TTL signals; Maximum pixel number : 1024 / port; LED driver IC: Normal one-wire RZ code LED driver IC. Colour:White Material:plastic Package Contents: 4 x LED Controller 4 x 3pin connector 4 x screwdriver Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.