Supplement

How to supplement light for photovoltaic panels

Position solar panels under bright LED or fluorescent lights, maintaining a 12-inch distance to simulate sunlight's intensity. Alternatively, use a standard household light bulb (60-100 watts) positioned 20 inches from the panel for 8-10 hours to achieve a meaningful charge. On cloudy or overcast days, panels usually operate at 10–25% efficiency, depending on how dense the clouds are. That's. . This article refers to experiments using the KidWind 2V/400mA Solar Panel (KW-SP2V). We have recommended a load resistance for each light source listed below. If you are wiring multiple panels in series or in parallel. . While solar panels can respond to certain types of artificial light, the output is minimal — far below what's needed to power a home or even charge a typical battery bank. Reducing that expense can help you save quite a bit of money in the long term.