Digital LED strip with SMD5050 White LED chip

This pixel tape has 8 pixels on one meter and each chip drive 6pcs single white LED
looks like we just changed the LED compare to the normal tapes
but take a look on the PCB pad, there are two Data on there !!
it's a new chip with R,G,B thress channel and two data line, one is spare line
so when one of IC driver burned, the rest of chip and LED will keep the strip working

by the way , its' IP67 waterproof ,silicon tube coated and silicon injection inside so 
it's totally for outdoor application