Access to LED downlight drivers
Access to the wiring connections of any can light is based on pulling the light out of the hole, then accessing the connections though that hole.  In this case, the wiring box can be pulled all the way out of the hole so you're in better shape than some situations.

With a good brand name like Lithonia, this are sure to be UL listed which means they should conform to common building codes and have been tested for safety.