The first is a 12 volt - 4" fan to move the air around
for my interior a/c unit that I will install under the bed, inside an enclosed box.
This fan will vent hot air out through the floor
This is a nice interior 360 deg fan to mount on the wall and it takes up little space.
Can be set to run for 2-6 hours.
The circuit panel for the 12 volt items like the fan & water pump etc.
A book to help explain 12 volt DC wiring methods.