Remove the film which covers the solar panel before using, Install these nozzles according to your needs, then put the pump completely in the water with its nozzle on the water.
Make sure there is no leaf or anything else shading a part of the solar pane.
Place the solar panel under enough sunlight and the panel should point directly at the sun.
Pull out the plug (the head part) firstly, and make the pump work for seconds to let the air go out of the pump

What's in the box
1 x E-More Solar Fountain Pump 1.4W Circle Garden Solar Powered black