Abstract: Disclosed is a mobile phone clip, including: a clamping member, a supporting member, and a base. The clamping member is rotatably connected to the supporting member through a first rotating assembly, the supporting member is rotatably connected to the base through the second rotating assembly, and a third rotating assembly is provided on the base. The second rotating assembly is configured to rotate supporting member to adjust a pitch angle of the mobile phone, the base is provided with a third rotating assembly for connecting an external equipment, and the third rotating assembly is configured to horizontally rotate the base to change an orientation of the mobile phone.

Abstract: Disclosed is a nonferrous magnetic filter system. The nonferrous magnetic filter system includes a filter assembly and an adapter ring. The filter assembly includes a lens ring, a first magnet, a first filter lens and a first clamping ring. The first magnet and the filter lens are firmly pressed and fixed on the lens ring through the first clamping ring. The adapter ring includes a fixing ring, a second magnet and a second clamping ring. The second magnet is firmly pressed and fixed on the fixing ring through the second clamping ring. The filter assembly is configured to be assembled on the adapter ring from a side of the adapter ring through a mutual adsorption of the first magnet and the second magnet.

Abstract: Disclosed are a flashlight, a camera and an electronic device. The flashlight includes a control module, a first drive module, a first boost module, a voltage signal unit and a tube body. The control module is for outputting a control signal, the first drive chip is for receiving the control signal and outputting a first drive signal according to the control signal, the first boost module is for receiving the first drive signal and outputting a first voltage signal according to the first drive signal, the voltage signal unit is for receiving the first voltage signal and outputting the first voltage signal to the tube body for charging, the first drive chip is further for detecting a current feedback signal of the first boost module, and for outputting an adjusting signal according to the current feedback signal to change the current feedback signal.