This is a long-term time-lapse camera that is waterproof and self-contained so it doesn't need access to power.  And you don't have to frequently change out the batteries.  The solar panel charges a large lithium-ion battery located inside the housing unit.  The unit is weather proof and very durable for a variety of uses.  This set-up can be used for construction projects, research, nature events, etc.  This unit was only used once on a 3-month construction project.  It is in excellent condition and was purchased new for $ 2,200.  This company has raised it's prices and the base model camera now costs $ 3,100.  For any set-up needs or configuration needs you can reach out to Harbortronics and they should be willing to send you a PDF or instructions via email to get this camera up and running the way you want it.  Their website is easy to find with a simple Google search.