15 Amp ELEGRP USB Wall Outlet, Dual Type C and one Type A Ports, 6 Pack, White

does this have an indicator light on the front?

Do these power a device to use at the time or only charge them for later use? Some of these specifically state that they only charge, but don't power.

Is this product UL listed?

Can you use this in an outdoor outlet that has a GFI breaker?