Your purchase is: 5 bases with built-in fuses  Photovoltaic Fuse holder 15A  Universal casing fits to 10*38mm fuse,Easy fuse access, installation and removal and easy to connect wire in screw clamp  Ideally for protecting the electrical circuit from overload and short-circuits for industrial equipment's or household appliances with indicated light  Be used for distribution and protection the facilities from damages caused by overload and short-circuit.