A self-balancing floating battery case, comprising an upper casing and a lower casing, wherein the upper casing and the lower casing are connected by threads, a height of the upper casing is bigger than a height of the upper casing. A light opening is provided at an intermediate portion of the upper casing away from a center of the upper casing, a box surrounding the light opening is provided on an inner wall of the upper casing, the box is divided to be a PCB cavity and a battery cavity, a main body of the light opening deviates towards the PCB cavity and a main body of the battery cavity deviate towards the center of the upper casing. In the present invention, existing structures are modified, the battery case has a higher waterline, entrance of water can be prevented; and eccentricity of the center of gravity is corrected by weight.

A multitool survival device, including a main body, a glass breaker disposed on at least a portion of the main body to shatter at least a portion of a glass surface in response to moving the glass breaker against the glass surface, a seatbelt cutter disposed on at least a portion of the main body to cut a seatbelt of a vehicle in response to moving the seatbelt cutter against the seatbelt, a compass disposed on at least a portion of the main body to display a direction thereon with respect to a geographic cardinal direction; a lachrymatory agent spray disposed on at least a portion of the main body to dispense a lachrymatory agent therefrom; a light disposed on at least a portion of the main body to illuminate a surrounding area of the main body; and a blade movably disposed on at least a portion of the main body to move from retracted within the main body in a first position to at least partially extended away from the main body in a second position, and move from extended away from the main body in the second position to retracted within the main body in the first position.

This invention is a compact portable “solar light” which incorporates recent advances in bulb and battery technology to produce high intensity light continuously for up to 12 hours for use on camping trips, in remote off-grid cabins, homes, etc., and emergencies. It uses a 12V solar panel exposed to sunlight outside to charge a standard 12V 12-18 Ah Li-ion (LiFePO4) or Lead-acid battery. The 12V DC battery current is fed to an inverter to produce 120V AC which is then fed to a standard 120V 15 W LED bulb, which produces 1500 lumens of (5000K) high intensity light continuously for 9-12 hours. This “solar light” also has a 120V AC outlet for use with 120V devices consuming less than 100 W (e.g. Laptop computer) and USB 3.0 and USB ‘C’ outlets. This “solar light” can also be charged from an automobile or other 12V source and also at home with a 120V AC to 12V DC step-down adaptor.

Solar-powered lighting devices that may be portable and/or collapsible are described. The devices may include a housing including a first wall, a second wall, and one or more side walls between the first wall and the second wall, at least one solar panel to generate solar energy, and a rechargeable battery to store the solar energy generated. The devices may include a plurality of operating modes for controlling lights within the housing, and a microprocessor for controlling the operating modes.

Solar-powered lighting devices that may be portable and/or collapsible are described. The devices may include a housing including a first wall, a second wall, and one or more side walls between the first wall and the second wall, at least one solar panel to generate solar energy, and a rechargeable battery to store the solar energy generated. The devices may include a plurality of operating modes for controlling lights within the housing, and a microprocessor for controlling the operating modes.

A rechargeable flashlight configured to communicate via a wireless network, and associated systems and methods are disclosed herein. In some embodiments, the rechargeable flashlight includes a light emitter configured to generate light outputted by the flashlight and an imaging device configured to capture environmental data from an area exposed to the output light. The flashlight can also include a cylindrical handheld main body that includes one or more functionally distinct modules configured to be detachably coupled together to provide coordinated operation. The flashlight can also include at least one user-controlled switch operable to control operation of one or more of the interchangeable cylindrical modules.

Solar-powered lighting devices that may be portable and/or collapsible are described. The devices may include a housing including a first wall, a second wall, and one or more side walls between the first wall and the second wall, at least one solar panel to generate solar energy, and a rechargeable battery to store the solar energy generated. The devices may include a plurality of operating modes for controlling lights within the housing, and a microprocessor for controlling the operating modes.

Solar-powered lighting devices that may be portable and/or collapsible are described. The devices may include a housing including a first wall, a second wall, and one or more side walls between the first wall and the second wall, at least one solar panel to generate solar energy, and a rechargeable battery to store the solar energy generated. The devices may include a plurality of operating modes for controlling lights within the housing, and a microprocessor for controlling the operating modes.

A lighting device includes a housing, a power supply, a first light source such as a LED, a variable focus lens adapted to vary the focus of light from the first light source, a switch and a controller having circuitry, The circuitry is adapted to control the current to the first light source based upon a voltage of the power supply, and is adapted to control variability of the variable focus lens.

A handheld flashlight includes a hollow cylinder having a first end and a second end, and a rechargeable battery therein. The handheld flashlight further includes a lamp head with a light source, a window breaker, a charging port and a discharging port, selectively connected to an external power source or an external load; a connection port, selectively connected to positive and negative terminals of a vehicle battery through external cables; and a management circuit, selectively applying power from the battery to one or more of the light source, the discharging port, and the connection, and selectively charging the battery from the external power source through the charging port; wherein the handheld flashlight is of such compact size and low weight as to be suitable for single-handed portable operation by a user.