Several factors can affect how productive these devices will be when placed in a window. These factors include orientation, reflection and refraction effects, the effects of shading, and temperature. During the nighttime, we light our homes with light bulbs. Is this ambient lighting a suitable source to create electricity in a solar device? Yes – however, several factors affect thei. So, what light bulbs can produce the best wavelength and intensity of light that can be used to power a solar panel? Here are a few options for you to consider. There are several smallerdevices whose power requirements allow them to function from the power produced by an indoor solar panel: 1. Charging cell phones 2. Charging portable radios 3. The leisure and camping industry has encouraged the development of devices that incorporate solar panels. This simple design also means that they will also function indoors.