... led module 1,Free sample 2,stable and weatherproof 3,CE and RoHS certificate 4,High quality but competitive price 3pcs 3528 smd led ... Instructions:1, SMD with high brightness, suitable in digital LED colorful characters, spurts draws, channel letters, Blister words ... of different color's character and design3, This module could be linked up to 20PCS, more than ... line voltage drop. 3pcs 3528 smd led module