The reason you are not getting a response is that most of us who have tried have discovered solar pumps are not good for much.
If you want to filter your pond, set up a skippy and a submersible pump that can pump 50% to 200% of your pond volume per hour. Low if you have few fish, high if you have many.
If you buy something that is called a solar pump it will be a toy. If you want to go solar you need to buy a solar battery generating system. You can find them at RV supply places. You will also need to buy abattery. After you have the proper system to keep a 12 volt automobile battery charged (a two battery system would be better because you can have one charging and one powering the pump at all times.) then you can look for a 12 volt pump. They are available in marine supply places as sump pumps or live bait circulating pumps.
Hi Here is my experience with solar pumps. Quit working at night ,cloudy, rain, shade, and if the screen got dirty. Mostly it just didn't work.lol. Ones powerful enough to work well need storage banks and obviously must be located in full sun. These tend to be expensive . For a table fountain even a small waterfall with limited lift and low flow.maybe If you want the pump for usual uses.filters lifts , go with standard electric. The only advantage to solar is no connections as the cost of running a comparable electric pump is negligible. maybe somebody with good experiences will chime in??? lol gary