Correlated Color Temperature (CCT) is a crucial metric for assessing the color of white light, especially in LED light sources. It gauges the warmth or coolness of white light, ranging from warm tones resembling candlelight to cool tones akin to fluorescent or overcast daylight.
The concept is rooted in the Black-Body Radiator theory, where the color of white light emitted by heating a black metal object, such as a horse-shoe, to a specific Kelvin temperature is measured.
LEDs are assigned a CCT value, typically between 2700K (warm) and 6500K (cool), representing the color temperature based on the black-body theory. Higher temperatures (e.g., 6500K) correspond to blue hues, while lower temperatures (e.g., 1500K) result in red tones.
Perceptible Differences: The human eye can more easily distinguish variations in warmer color temperatures (100K difference) compared to cooler color temperatures (500K difference).
Binning Impact: Manufacturers employ binning to categorize LEDs based on various measurements, including CCT. Tight binning specifications minimize variations within the same batch, ensuring consistency in CCT. This precision incurs higher costs but results in superior quality.
Form Factor Influence: The CCT of LED products can be influenced by factors like waterproof coatings. Careful oversight is essential during production to maintain CCT and light output consistency, particularly in products like waterproof strip lights.
In summary, understanding CCT and its influencing factors is crucial for selecting LED lighting solutions that align with specific color temperature preferences. G Light commitment to tight binning and quality control contributes to the reliability and consistency products.