IW1708-24V is a charge controller that charges a lead-acid battery with solar panel power. Equipped with a step-up MPPT circuit, you can extract electricity from the solar panel even in the morning and evening and in bad weather. 24V only.
A general-purpose USB-controlled relay module. 12V, 24V, AC 100V, etc. can be turned on and off via USB. A free control command line program is available.
The IWT504-3V3 is a power module that outputs 3.3V stabilized for 24 hours using a combination of solar cells and supercapacitors. Supports output current up to 300mA.