What is an eco light bulb?

Answer 1

sometimes

Compared to an incandescent light bulb, "green" ( eco? ) light bulbs are generally more efficient to manufacture and more efficient in using (less) electricity to make (more) light; and they contain or release less toxic materials during manufacture, use, and (should they fail prematurely) disposal of used bulbs.

Likely examples: LED bulbs, Fluorescent bulbs (except they contain Mercury).

Answer 2

An eco light bulb, also known as an energy-efficient light bulb, is designed to consume less electricity compared to traditional incandescent bulbs. They are typically LED or compact fluorescent bulbs that produce the same amount of light while using less energy, helping to reduce energy costs and lower carbon emissions.