Incandescent Light bulbs.
Light bulbs have existed for more than 100 years. These are the light bulbs you probably grew up with, and their familiar warmth often gives them a different look that matches this nostalgia. Although the performance of your bulb may have changed over the years, not much has been done to improve the functionality of this classic light.

LED bulbs
Unlike light bulbs, light emitting diodes (LEDs) are another popular light bulb in the home, but they use a chip surrounded by epoxy resin to emit light. LED bulbs, which originally did not like their "cooler" tone, have come a long way in terms of color and are now gradually phasing out the traditional bulb.