3528 smd led module 1,Free sample 2,stable and weatherproof 3,CE and ... Boxes Backlighting5, Commercial Sign Backlighting6, Stage Backlighting7, Message Display Backlighting Instructions:1, SMD with high brightness, suitable in digital LED colorful characters ... dynamic effect of different color's character and design3, This module could be linked up to 20PCS, more than 20pcs is ...