What's the difference between submersible pump and deep well pump?

The similarity between submersible pump and deep well pump is the water pump below submersible pump. The difference is that the general submersible pump is a single-stage impeller with small lift, large pump body and low power. Deep well pump is a multi-stage pump with large lift and small and long pump body, which is suitable for small-diameter deep water wells with relatively large power. The quality of deep well pump is relatively better.