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.

Abstract: Disclosed is an aircraft with a super high aspect ratio based on self-unfolding folding wing technology, the aircraft including: an aircraft body; a fixed wing; and a movable wing assembly including a first movable wing and a second movable wing. When the aircraft takes off, the first movable wing and the second movable wing are in a folded position. The first movable wing and the second movable wing are deflected and moved to an unfolded position or a folded position by the aerodynamic force and moment generated by the deflection of aerodynamic control surfaces and the differential thrust and moment generated by a distributed propulsion system.

Abstract: Disclosed is an aircraft with a super high aspect ratio based on self-unfolding folding wing technology, the aircraft including: an aircraft body; a fixed wing; and a movable wing assembly including a first movable wing and a second movable wing. When the aircraft takes off, the first movable wing and the second movable wing are in a folded position. The first movable wing and the second movable wing are deflected and moved to an unfolded position or a folded position by the aerodynamic force and moment generated by the deflection of aerodynamic control surfaces and the differential thrust and moment generated by a distributed propulsion system.