Solar electrics (1st picture) two Morningstar ProStar-15 12/24volt charge controllers. Each is connected to banks of four Uni-Solar panels hooked up in 24 series parallel configuration. These controllers are packed with great features including an LCD meter that shows battery volts, solar amps and load amps. I like the push button switch that controls 'Load Off, Solar off, Self Test and Restart facilities. These controllers also show the battery state of charge and they are not fooled by the battery voltage which can sometimes offer a high voltage reading but in fact be in medium state of charge. Also in the first picture, a conveniently located AAA battery fast charger.
The second picture shows the Durite Switchmode voltage converters which drop 24volt down to standard <14.4 volt. They handle a load of 12 amps continuous 18 amps maximum. You can also see a convenient triple socket cigar lighter, a 120 watt regulated adapter and a 150 watt auxiliary AC inverter.