those panels don't seem to be big enough to be directly powering much, so I think the answer would be that this would work in many light levels, but it will just charge the batteries slower in lower light situations.
This looks to be a smart product!! Does this charger needs to be out in the sun (directly) in order to produce rated power, or can this produce rated power in normal day light in a room or even with artificial light in s room? The problem I see here is that I won't be able to charge my phone overnight, which I usually do.
Drones are, in essence, flying autonomous vehicles. Pros and cons surrounding drones today might well foreshadow the debate over the development of self-driving cars. In the context of a strongly regulated aviation industry, "self-flying" drones pose a fresh challenge. How safe is it to fly drones in different environments? Should drones be required for visual line of sight – as are piloted airplanes? Join EE Times' Junko Yoshida as she moderates a panel of drone experts.