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  2. High-intensity discharge lamp - Wikipedia

    en.wikipedia.org/wiki/High-intensity_discharge_lamp

    HID lamps are used in high-performance bicycle headlamps, as well as flashlights and other portable lights, because they produce a great amount of light per unit of power. As the HID lights use less than half the power of an equivalent tungsten-halogen light, a significantly smaller and lighter-weight power supply can be used.

  3. List of battery sizes - Wikipedia

    en.wikipedia.org/wiki/List_of_battery_sizes

    A common battery type in cameras and photographic equipment. In Switzerland as of 2008, these batteries accounted for 6% of lithium camera battery sales. [75] 2CR5: EL2CR5 DL245 RL2CR5 KL2CR5 6135-99-577-2940 (NSN) 2CR5: 5032LC [137] 1,500: 6: Double cylinder. Keyed. Both on one end. Terminal center spacing 16 mm. H: 45 mm L: 34 mm W: 17 mm

  4. Comparison of commercial battery types - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_commercial...

    Cell chemistry Also known as Electrode Re­charge­able Com­mercial­ized Voltage Energy density Specific power Cost † Discharge efficiency Self-discharge rate

  5. Human interface device - Wikipedia

    en.wikipedia.org/wiki/Human_interface_device

    A human interface device (HID) is a type of computer device usually used by humans that takes input from or provides output to humans. The term "HID" most commonly refers to the USB HID specification. The term was coined by Mike Van Flandern of Microsoft when he proposed that the USB committee create a Human Input Device class working group.

  6. Metal-halide lamp - Wikipedia

    en.wikipedia.org/wiki/Metal-halide_lamp

    It is a type of high-intensity discharge (HID) gas discharge lamp. [1] Developed in the 1960s, they are similar to mercury vapor lamps, [1] but contain additional metal halide compounds in the quartz arc tube, which improve the efficiency and color rendition of the light. The most common metal halide compound used is sodium iodide. Once the arc ...

  7. Battery grip - Wikipedia

    en.wikipedia.org/wiki/Battery_grip

    Sony Alpha 700 with battery grip N50. A battery grip is an accessory for an SLR/DSLR (and occasionally other cameras), which allows the camera to hold multiple batteries to extend the battery life of the camera, and adds a vertical grip with an extra shutter release (and other controls), facilitating the shooting of portrait photography. [1]

  8. USB human interface device class - Wikipedia

    en.wikipedia.org/wiki/USB_human_interface_device...

    In computing, the USB human interface device class (USB HID class) is a part of the USB specification for computer peripherals: it specifies a device class (a type of computer hardware) for human interface devices such as keyboards, mice, touchscreen, game controllers and alphanumeric display devices.

  9. Sodium-vapor lamp - Wikipedia

    en.wikipedia.org/wiki/Sodium-vapor_lamp

    LPS lamps are similar to fluorescent lamps in that they are a low-intensity light source with a linear lamp shape. They do not exhibit a bright arc as do high-intensity discharge (HID) lamps; they emit a softer luminous glow, resulting in less glare. Unlike HID lamps, during a voltage dip low-pressure sodium lamps return to full brightness rapidly.