Yes, it is possible to adjust the color temperature of certain reading lights. Color temperature refers to the perceived warmth or coolness of light, typically measured in Kelvin (K). Warmer color temperatures (lower Kelvin values) emit a softer, yellowish light, while cooler color temperatures (higher Kelvin values) produce a brighter, bluish light. The reading lights mentioned in the write-up also have the option to adjust the color temperature as mentioned in their specifications.