This product is a mini SPI digital signal amplifier to properly solve the wiring problems of WS2812B/WS2811 3-pin addressable led strip lights. 

It works with 5-24 volt DC voltage, one channel input, output 4 channels signals, all light strips work synchronously.

Each signal is output independently and does not affect each other. It can be 10-20 meters long (33ft~65.6ft) between every two mini amplifiers. 

This led strip light amplifier can be cascaded infinitely, compatible with pixel led controllers SP611E, SP105E, SP108E, SP601E, K-1000C and more. 
With hardware burn-proof protection.