Eight Slot Charging Solution. The Aputure B7c 8-Light Charging Hard Case is a hard shell casing and charging solution for up to eight B7c LEDs. This case has a Push-Pull design for safety and ease-of-use, and includes socket covers to prevent shock when inserting or removing the LEDs. There is an included power cord that plugs right into a standard 15a wall socket when ya need to fuel up.