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  2. Christmas lights - Wikipedia

    en.wikipedia.org/wiki/Christmas_lights

    Christmas lights in Verona, Italy. Trafalgar Square Christmas Tree with lights in London, England. Christmas lights (also known as fairy lights, festive lights or string lights) are lights often used for decoration in celebration of Christmas, often on display throughout the Christmas season including Advent and Christmastide.

  3. Holiday lighting technology - Wikipedia

    en.wikipedia.org/wiki/Holiday_lighting_technology

    Early bulbs, as well as some new antique reproductions, are made in various shapes and then painted like Christmas ornaments. Bubble lights and twinkle bulbs also come in this size. Outdoor-only bulbs are designated C 9 + 1 ⁄ 4 (1 + 5 ⁄ 32 in, or 29 mm), and have a similar blunt shape as the C 7 + 1 ⁄ 2, but use an E17 "intermediate" base ...

  4. Rope light - Wikipedia

    en.wikipedia.org/wiki/Rope_light

    A length of illuminated rope light. A rope light is primarily used as a decorative lighting fixture, featuring small lights linked together and encased in a PVC jacket to create a string of lights. Rope lights can be used in many applications both indoors and outdoors. [1] Used in place of neon signs, it is sometimes called soft neon.

  5. LED circuit - Wikipedia

    en.wikipedia.org/wiki/LED_circuit

    Simple LED (Light Emitting Diode) circuit diagram. In electronics, an LED circuit or LED driver is an electrical circuit used to power a light-emitting diode (LED). The circuit must provide sufficient current to light the LED at the required brightness, but must limit the current to prevent damaging the LED.

  6. Parol - Wikipedia

    en.wikipedia.org/wiki/Parol

    Over time, they became an indispensable part of Filipino Christmas tradition. [5] [9] [11] The significance of the parol in traditional Philippine Christmas celebrations is underscored in a letter by José Rizal in 1893. While he was in exile in Dapitan, Rizal asked his family to send him Japanese paper so he might "celebrate Christmas properly ...

  7. Pull switch - Wikipedia

    en.wikipedia.org/wiki/Pull_switch

    The other type would switch to closed (or open) only when releasing after a full pull. With the first type, the weight of the string and handle could accidentally switch the load intermittently on and off, when still around the initial position (depending on the internal spring). This could potentially increase the danger of overheating in the ...

  8. Christmas tree (drag racing) - Wikipedia

    en.wikipedia.org/wiki/Christmas_tree_(drag_racing)

    A common Christmas tree consists of a column of seven lights for each driver or lane. Each side of the column of lights is the same. At an NHRA national event, the Christmas Tree, which was first used in April 2011, from the top down, consists of a blue LED light set (top and bottom halves), then three amber bulbs, then a green bulb and a red ...

  9. Light-emitting diode physics - Wikipedia

    en.wikipedia.org/wiki/Light-emitting_diode_physics

    If the semiconductor is translucent, the junction becomes the source of light, thus becoming a light-emitting diode. I-V diagram for a diode. An LED begins to emit light when more than 2 or 3 volts is applied in the forward direction.