History of the light bulb

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  • Invention of the Arc Lamp

    Incandescent

  • First constant electric light demonstrated

    Incandescent

  • Lighting in a tube

    Flourescent

  • Edison Beginns on incandescent light

    Incandescent

  • Invention of incandescent light bulb

    Incandescent

  • Precursor to Flourescent lights

    Flourescent

  • Carbon filament replaced with Tungsen filament

    Incandescent

  • Edison's screw becomes universal

    Incandescent

  • Doubling efficiency of incandescent by filling bulb with inert gas

    Incandescent

  • Neon tubes coated with phosphorus

    Flourescent

  • First Flourescent lamps on display

    Flourescent

  • Flourescent overtake incandescent

    Flourescent

  • First Light Emmiting Diode (LED) invented

    LED

  • First Flourescent bulbs in spiral shapes

    Flourescent

  • LED's appear in consumer products

    LED

  • First CFL hits the market

    Flourescent

  • First blue then white LED's

    LED

  • First residential LED bulbs on the market

    LED

  • 49 million LED products installed in the USA

    LED

  • LED costa drop dramatically

    LED

  • CFL for as little as $1.74

    Flourescent