Well, if it works with yellow lighting, it is the one that gives the best results, they also told me that they can use the Battery inverters to charge things from solar panels, but I feel that it is a waste of a device that they do that with their function in perspective, things should be for what were created.
No, they don't work without sunlight as it is the primary source of producing energy. In order to convert sunlight into electricity, there must be sun. At nighttime, when the sun makes its daily round across the globe to provide other areas with sunlight, solar panels also go into sleepy mode. To overcome this, one can install batteries that can store electricity during sun hours and provide it at night time. Make sure to purchase solar panels that is manufactured by reputed solar company with latest technology at an affordable cost.