Miscellaneous Electronics
DIY Solar Controller 5V 9V 12V USB-A/USB-C Output Port Voltage Stabilizer Solar Panel Regulator QC/PD 2.0 3.0
DIY Solar Controller 5V 9V 12V USB-A/USB-C Output Port Voltage Stabilizer Solar Panel Regulator QC/PD 2.0 3.0
https://www.bizrate.co.uk/miscellaneouselectronics/diy-solar-controller-5v-9v-oid36593606414.html