900mA MPPT Solar Panel Controller - Solar Power Manager Module for 5V Solar Panel - Support Solar and USB Charging

https://www.amazon.com/DFROBOT-900mA-Solar-Panel-Controller/dp/B07MML4YJV This is the 5v 1A version, but they also make a larger one that can do both higher output voltage and amperage. I have several of these deployed in solar nodes for about 6 months, and have had no issues. Only time will tell if they hold up to summer heat in the long term.