Smaller DC-coupled systems without inverter can only power DC-appliances. Though most appliances use AC-power, there is a growing amount of DC-appliances available in the Tanzanian market. Think particularly about DC-LED Bulbs, DC-Fans and DC-TV’s.
A system with an inverter can also power AC-appliances. Pretty much all appliances can be connected to a solar power system, however, you should pay attention to appliances providing heat. Electric boilers, heaters, stoves and ovens require a lot of power for a long time. Normally it is more economical to power these appliances using solar water heaters or gas.