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  2. Cap lamp - Wikipedia

    en.wikipedia.org/wiki/Cap_lamp

    The two most recent variants of the cap lamp are the GEN 4 and GEN 5 models. The GEN 4 model, approved for use by the Mine Safety and Health Administration (MHSA), uses the headpiece of existing cap lamps, but retrofitted with new LEDs and electronics. The GEN 5 model is very similar to the GEN 4 model except with a more intense spot beam that ...

  3. Mining lamp - Wikipedia

    en.wikipedia.org/wiki/Mining_lamp

    1909 Cap (helmet) lamps introduced in Scotland 1911 Prize offered for best electrical lamp 1911 Coal Mines Act made requirements for pit managers to take examinations, where can be used (including electrical), etc. 1920 Electrical lamp with built in accumulator 1924 Miners Lamp Committee – tests and recommendations

  4. List of automotive light bulb types - Wikipedia

    en.wikipedia.org/wiki/List_of_automotive_light...

    Group 2 (Only for use in signalling lamps, cornering lamps, reversing lamps and rear registration plate lamps) Category Cap (Base) Filaments Nominal Power (Major/Minor where applicable) Comments Image C5W SV8.5 1 6 V, 12 V, 24 V: 5 W [5] ECE nominal luminous flux: 45 lm ± 20%; Old designation: C11, common name is "festoon" base H6W BAX9s 1 12 ...

  5. Safety lamp - Wikipedia

    en.wikipedia.org/wiki/Safety_lamp

    A safety lamp has to ensure that the triangle of fire is maintained inside the lamp, but cannot pass to the outside. Since any breathable atmosphere contains oxygen, and a safety lamp's raison d'être is to operate in an atmosphere also containing fuel (firedamp or coal dust), the element which must be blocked is heat. The key to manufacturing ...

  6. LED lamp - Wikipedia

    en.wikipedia.org/wiki/LED_lamp

    A 230-volt LED filament lamp, with an E27 base. The filaments are visible as the eight yellow vertical lines. An assortment of LED lamps commercially available in 2010: floodlight fixtures (left), reading light (center), household lamps (center right and bottom), and low-power accent light (right) applications An 80W Chips on board (COB) LED module from an industrial light luminaire, thermally ...

  7. A-series light bulb - Wikipedia

    en.wikipedia.org/wiki/A-series_light_bulb

    The A-series light bulb is the "classic" glass light bulb shape that has been the most commonly used type for general lighting service (GLS) applications since the early 20th century. It has a pear-like shape and is typically fitted to either an Edison screw or a bayonet cap base.