SMD stands for Surface Mounted Devices. SMD LEDs use Surface-mount technology (SMT) to mount LED chips on printed circuit boards (PCB). These LEDs are recent, resilient, efficient and have high-reliability performance, they ideally suited to be used in general purpose LED lighting solutions. 

Some common SMDs types are SMD 3528 (3528 refers to the size of the lamp beads is 3.5mm×2.8mm), 5050, 2835, 5730 and 3014.

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