SMD also named SMT (surface mounted technology),through the SMT technology encapsulating diode, soldering this lamp on the PCB board surface. Widely used for indoor projects.
DIP LED are throught the DIP ( Dual in-line package) technology, after soldering the LED lamp’s feet to stable it on the PCB., so it names of DIP LED. Mainly used for outdoor projects.
The comparison of SMD and DIP.
SMD with RGB 3 colors in 1 LED cup technology, with better colors uniformity, and wider viewing angle, usually, SMD can be done the small pitch pixels, so for some high resolution LED screen, SMD is the best choice.
DIP technology with LED feets in PCB board, then the heat dissipation is better than SMD, and higher brightness, even under the sunshine, DIP LED screen can also show the contents well. That is the reason why people like DIP for outdoor used.
For the energy saving influence, SMD is a new technolog, with high luminous efficientcy.compare
With DIP,it is 30% energy saving.