A light for an ebike, comprising three LEDs, a rechargeable light battery, a charging port, to receive power from an accessory port of an ebike, and control circuitry, programmed so that when the power drain of the LEDs is less than the power input from the accessory port, the battery can be charged and when the power drain of the LEDs is greater than the power input from the accessory port the LEDs can draw power from both the battery and the accessory port.

A lighting device including a light source, an input device, a power source configured to provide power to the lighting device, and one or more electronic processors. The one or more electronic processors are configured to receive an input signal to illuminate the light source from the input device and determine a first state-of-charge of the power source. The electronic processors are further configured to determine a first illumination output value based on the determined first state of charge and initiate a first ramp-down operation of the light source from the first illumination output value. The first ramp-down operation is configured to reduce an output of the light source as a percentage of the first illumination intensity over time. The electronic processors are also configured to continue the first ramp-down operation until the output of the light source reaches a predetermined illumination intensity.

A portable light including an elongated housing having a first end and a second end opposite the first end, and a light-emitting head pivotably coupled to the second end of the elongated housing. The light-emitting head having a housing portion defining a first end and a second end opposite the first end. A first light source is coupled to a first side of the light-emitting head and is positioned between the first end and the second end of the housing portion. A second light source coupled to the second end of the housing portion. A battery cell is removably coupled to the elongated housing to power the first and second light sources.

A handheld lighting device comprises a cylindrical body forming an inner wall and an outer wall, and further having a distal end and a proximate end. The device comprises at least one peltier tile disposed along the outer wall and towards the proximate end of the cylindrical body, each of the at least one peltier tile having a first side for coming into contact with a user's hand and a second side which forms part of the inner wall of the cylindrical body. Also, at least one lighting element is disposed at least partially within and towards the distal end of the cylindrical body. The device includes a conversion component electrically connected to the at least one lighting element and the at least one peltier tile, and at least one cooling component is disposed within the cylindrical body and contacting the second side of the at least one peltier tile.

A photovoltaic renewable energy system utilizes a light source and one or more reflectors to produce power via photovoltaic cells. An exemplary photovoltaic renewable energy system utilizes a light source, such as Light Emitting Diodes (LED), to provide light to photovoltaic cells that therein produce electrical power. The photovoltaic cells may be arranged in a photovoltaic array to ensure maximum power conversion from the incident light. A reflector, such as a prism may be used to direct light from the light source onto the photovoltaic cells. A cell reflector, which may also be a prism, may be configured proximal to the photovoltaic cell surfaces to reflect light onto the photovoltaic surface to increase power conversion.

A portable flashlight thermos cup with a charging function includes: a flashlight thermos cup body; a lighting mechanism on the flashlight thermos cup body; and a thermal energy conversion power generation mechanism on the flashlight thermos cup body that is electrically connected to the lighting mechanism and converts thermal energy into electrical energy; a cup body; and a plastic anti-ironing part that detaches from the cup body. The flashlight cup uses thermoelectric power generation to export the heat of hot water through metal connectors and dissipates heat through heat dissipation metal sheets to generate temperature differences. The thermoelectric power generation sheet converts thermal energy into electric energy and stores the electric energy in the battery. The battery can also be charged from outside sources and used for lighting or charging mobile power supplies. The portable flashlight thermos cup is environmentally friendly and used for outdoor emergencies.

The present disclosure discloses a lamp comprising a lamp body and a connecting rod assembly. The connecting rod assembly is alternatively connected to a first connecting member or a second connecting member respectively to define a first use state and a second use state. When in the first use state, one or more connecting rods of at least three connecting rods which are connected successively in an axial direction define a lifting rod, and a first end of the lifting rod is connected to the first connecting member. When in the second use state, first ends of the at least three connecting rods are connected to the second connecting member, and second ends of the at least three connecting rods are spaced apart from each other to define a placing plane within which a vertical projection of a center of gravity of the lamp body is located.

Portable lighting devices, systems and methods are provided. The portable lighting devices may include a light source, a rechargeable battery, a battery charging and control circuitry, a power connector port and a wireless communication circuitry. The battery charging and control circuitry may be configured to control transmission of current from the rechargeable battery to the light source, and transmission of current from the rechargeable battery through the power connector port and onto an external device. The transmission of current to the external device may occur when the rechargeable battery has a charge capacity above a predetermined threshold level and terminates when the charge capacity of the rechargeable battery is at or below the predetermined threshold level. The wireless communication circuitry may be configured to transmit a battery condition information of the rechargeable battery to an external communication device through a wireless link.

A segmentally extendable modular handheld flashlight and a respective kit-of-parts for assembling the same are described, in which at least one battery segment configurable as an electric charger, in a dismantled conformation.

A portable flashlight thermos cup with a charging function includes: a flashlight thermos cup body; a lighting mechanism on the flashlight thermos cup body; and a thermal energy conversion power generation mechanism on the flashlight thermos cup body that is electrically connected to the lighting mechanism and converts thermal energy into electrical energy; a cup body; and a plastic anti-ironing part that detaches from the cup body. The flashlight cup uses thermoelectric power generation to export the heat of hot water through metal connectors and dissipates heat through heat dissipation metal sheets to generate temperature differences. The thermoelectric power generation sheet converts thermal energy into electric energy and stores the electric energy in the battery. The battery can also be charged from outside sources and used for lighting or charging mobile power supplies. The portable flashlight thermos cup is environmentally friendly and used for outdoor emergencies.