Designed to use with solar panels in the sunny day, use with battery systems and solar charge controller in rainy day or at night. It is a non-toxic, pollution-free, noiseless environmental protection solar powered water pump. Do not mix the positive (+) and negative (-) connection.The pump is submersible pump, it must be full submerged in the water. 1 x solar powered water pump. The item "180W 12V DC Solar Powered Water Pump Submersible Bore Hole Deep Well Pump" is in sale since Tuesday, October 15, 2019. This item is in the category "Business, Office & Industrial\Industrial Tools\Generators". The seller is "denyakim" and is located in China. This item can be shipped worldwide.