What is the core advantage of TPON solar water pump?

What is the core advantage of TPON solar water pump?

Stainless steel pump body: More environmental protection, Safer.
100% Copper wire: Electrical conductivity is strong, use life is longer.
High efficient bearing: Hardness, high resistance to wear
New shaft: Using the latest 304# stainless steel shaft, have the smooth operation 
Others: Using the food-grade oil, copper outlet and high-quality copper flat cable