The hand held flat flash light about the size of a cell phone with a 1 degree lens collimator, a rechargeable battery contained in the body, an on/off switch and one or more LED's that emit a high energy beam of light or spot light.

Electronic light emitting flares and related methods. Flares of the present invention include various features such as self-synchronization, remote control, motion-actuated or percussion-actuated features, dynamic shifting between side-emitting and top-emitting light emitters in response to changes in positional orientation (e.g., vertical vs. horizontal) of the flare; overrides to cause continued emission from side-emitting or top-emitting light emitters irrespective of changes in the flare's positional orientation; use of the flare(s) for illumination of traffic cones and other hazard marking or traffic safety objects or devices, group on/off features, frequency specificity to facilitate use of separate groups of flares in proximity to one another, selection and changing of flashing patterns and others.

The one or more LED filaments (110) are arranged to form an inner space. At least one of the one or more LED filaments (110) is arranged as a LiFi transmitter. The LiFi device (100) further comprises a light sensor (120) arranged within the inner space. The light sensor (120) is arranged as a LiFi receiver. The LiFi device further comprises an envelope arranged to envelope the one or more LED filaments (110) and the light sensor (120). The one or more LED filaments (110) are further arranged such that the LED filament light is directed towards the envelope.

In some embodiments, a system comprises a host computing device and an audio device communicatively coupled to the host device and including at least one speaker and a plurality of light emitters. The host computing device can include a processor(s) and one or more machine-readable, non-transitory storage mediums with instructions configured to cause the processor(s) of the host computing device to perform operations including receiving user environment data by one or more sensors of the host computing device, receiving user selection data corresponding to a selected mode of operation of the audio device, determining a characterization profile of a surrounding environment of the user based on the user environment data, and sending the characterization profile to the audio device, the characterization profile configured to cause the audio device to control the plurality of light emitters based on the characterization profile and the selected mode of operation.

In some embodiments, a system comprises a host computing device and an audio device communicatively coupled to the host device and including at least one speaker and a plurality of light emitters. The host computing device can include a processor(s) and one or more machine-readable, non-transitory storage mediums with instructions configured to cause the processor(s) of the host computing device to perform operations including receiving user environment data by one or more sensors of the host computing device, receiving user selection data corresponding to a selected mode of operation of the audio device, determining a characterization profile of a surrounding environment of the user based on the user environment data, and sending the characterization profile to the audio device, the characterization profile configured to cause the audio device to control the plurality of light emitters based on the characterization profile and the selected mode of operation.

A kit of parts for playing a capture the flag game in low-light conditions is disclosed herein. The kit can include a number of flags, each of the flags carrying one or more light emitting diodes (LEDs) operable to provide a visual signal; a number of territory markers, each of the territory markers carrying one or more LEDs operable to provide a visual signal; and a number of jail markers, each of the jail markers carrying one or more LEDs operable to provide a visual signal. The flags, the territory markers, and the jail markers are configured to be selectively disposable upon or attachable to the terrain.

The utility model discloses an electrical connector for Christmas lamp trees which comprises an upper and a lower connecting base, first columnar electrodes and elastic devices are arranged in the upper connecting base, second arc-shaped electrodes are arranged in the lower connecting base, and the elastic devices cause the first electrodes to tightly abut against the second electrodes. The first columnar electrodes and the second arc-shaped electrodes form a point-to-surface contact, so that the reliability of electrical connection is increased greatly, allowing a Christmas lamp tree to be universal to high and low voltages. Moreover, sufficient contact between upper and lower layers and natural effect of the Christmas lamp tree can still be ensured even if the Christmas lamp tree is subjected to an external force, and multiple sets of first and second electrodes are electrically connected in one-to-one correspondence, leading to diversified functions of the Christmas lamp tree.

A mobile emergency light device includes a casing (1), a moving closure cover (2), a translucent lens (3), an electronic circuit board (5) for control, and a combined reflector (4), in which the combined reflector (4) has an inverted bell shape and is open at both ends, in which the electronic circuit board is securely connected to the combined reflector (4), and provided with a plurality of light-emitting diodes (LED), suitably angled towards the combined reflector (4), and in which the casing (1) forms inside this a cylindrical cavity (13), whose interior houses an automatic switch, driven by the base of the casing approaching a ferromagnetic material.

Electronic light emitting flares and related methods. Flares of the present invention include various features such as self-synchronization, remote control, motion-actuated or percussion-actuated features, dynamic shifting between side-emitting and top-emitting light emitters in response to changes in positional orientation (e.g., vertical vs. horizontal) of the flare; overrides to cause continued emission from side-emitting or top-emitting light emitters irrespective of changes in the flare's positional orientation; use of the flare(s) for illumination of traffic cones and other hazard marking or traffic safety objects or devices, group on/off features, frequency specificity to facilitate use of separate groups of flares in proximity to one another, selection and changing of flashing patterns and others.

A submersible light fixture including an outer casing with a window and a housing, the outer casing being sealed for operation underwater, an LED array within the outer casing behind the window including a plurality of light-emitting diodes, and a driver within the outer casing including a microprocessor, at least one capacitor, a charging circuit, and discharging circuit. The charging circuit charges the at least one capacitor to a voltage of at least two times a forward voltage of the LED array. The discharging circuit delivers power from the at least one capacitor to the LED array in discrete pulses at a voltage of at least two times the forward voltage of the LED array.