Some area of Africa countries may have a higher demand of solar electricity other then lighting and mobile charging, such as TV, Fan, Radio...
We have develop a new kind quality products with LiFePO4 battery, which have enough power to supply DC TV, DC Fan, Radio, Lighting, Mobilephone charging... It is high efficiency without inverter, dc directly to power can save a lot energy, and on the other hand saves cost.
For more details please view: http://www.solararia.com/product/solar-lighting-system-sa-sls128-plus/
Another point, this one can also be designed Pay as you go function.