My mom uses this fountain in her pond for her hummingbirds to play in and they love it. The seperate solar panel works much better than the fountains with the panel on it. You can move the solar panel around to catch the best sunrays without moving your fountain.
COSSCCI 1.8W Solar Fountain Water Pump for Bird Bath Solar Panel Kit Outdoor Fountain for Small Pond, Patio Garden (Square) | https://www.amazon.com/dp/B07SYYWQ9F