-
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