Lumens – Measure of the total quantity of visible light emitted. A high lumen output creates brighter whites and darker darks.
Lux – One lumen per square meter. Often refers to the intensity of a light source.
Efficacy – Lumens per Watt - measure of how well a light source produces visible light.
CCT (Correlated Color Temperature) – Another way to refer to the color temperature of a light and is measured in Kelvins.
Watts – A unit of measure for the rate of energy transfer no longer relevant with LED’s.
CRI – Color Rendering Index – a measure of a light’s ability to accurately reveal the colors of an object. Go with 85 or higher for vivid, brilliant colors, free of haziness or discoloration.
Color Temperature (Kelvins) – The color of the light, measured in Kelvins. The higher the Kelvins, the brighter white the color of the light. As the Kelvins become lower, the color temperature becomes warmer.
The next time you are lost in a sea of colors, lumens, eco-friendly claims, and CRI’s, remember the 4 C’s of PureOptics LED Lighting!