The ring light MCE610 from the company Maclean Energy with a diameter of 25cm can deliver light with a temperature of 3000 - 6500K. The color temperature refers to how warm or cool the color is. Light warmth is measured in Kelvin (K), and the lower the degree, the more yellow the shades, while the higher the degree, the more cyan the shades. Low color temperatures of 2700-3000K provide warm lighting, intermediate temperatures of 4000-5000K provide daylight, and high color temperatures of 5000-6500K provide cool lighting.