
Originally Posted by
niky
The typical baro baro in the slum is built wall-to-wall with the next baro baro... and there's very little natural lighting to be had from open windows. A solar bulb like this is much less expensive than a natural skylight or even installing a light bulb (needs bulb, mount, switch, electrical wiring, etcetera). It can be done for just a hundred bucks (retail... cost to do is just 50 pesos). It's not useful the entire day, but it can cut down on the need for electricity. If it saves a household 100-200 pesos a month... with the only maintenance cost being to replace the water every few months... isn't it worth it?