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.
What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Are the design challenges the same as with embedded systems, but with a little developer- and IT-skills added in? What do engineers need to know? Rick Merritt talks with two experts about the tools and best options for designing IoT devices in 2016. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.