Lamp Cap Comparison：
A：Plastic lamp cap has insulation function with high security and fashionable appearence.
B：Mental lamp cap is easy to conduct electricity,which is not safe to connect with high voltage.
Light Source Comparison:
A：SMD is suitable for automatic large quantity production,to avoid the infulence on the quantity effectively caused by manual operation.and ensure the stable function for products.
B：SMD feature with good heat emitting,high lumen flux and low optical decay(3% in 1000 hrs)
A：For DIP LED,the heat is emitted through the pins,and high optical decay(above 15% in 1000 hrs)
B：Operated by handwork only,inconvenient for automatic produce and management,and easy to cause many problems by human factor.
LED application project Between SMD LED tube and DIP LED tube