Lumens are a unit of measurement that quantify the amount of visible light emitted by a source. They help consumers understand how bright a light bulb or fixture will be. The higher the lumen rating, the brighter the light. This measurement is essential for choosing the right lighting for different spaces, whether for homes, offices, or outdoor areas. In lighting, lumens replace the older measurement of watts, which indicated energy consumption rather than brightness. For example, a standard 60-watt incandescent bulb produces about 800 lumens, while a LED bulb can produce the same brightness using only about 10 watts. This shift promotes energy efficiency and better lighting choices.