Incandescent bulbs are the traditional option, the first type of light bulb invented and famous for their warm color. These bulbs use a filament, through which an electrical current is run.

You may see light bulbs labeled as A60 or A19, for example, which refers to it being an A type bulb shape followed by its diameter measured in eighths of an inch.

The bulbs are made with a plastic material that gives off light when an electric current runs through it. Carroll and his team added carbon nanotubes to the plastic, which enabled it to give off ...

C9 light bulbs: These lights have a larger bulb size that is shaped like the flame of a candle or similar to a cone. "When people see these bulbs, they think of putting up holiday lights with ...

Globe light bulbs: Globe light bulbs are exactly as they sound—the shape of a globe or sphere. The most typical size of this light is the G12. They're popularly used both outdoors and indoors.