Much like other light bulbs, selfie lights offer a variety of color lighting temperatures, which can affect the whole mood of your selfie or video. While light bulbs tend to only be one temperature, most selfie lights let you switch between different settings: warm, cool white, and daylight. Light temperature is measured in kelvin.Warm: This refers to light that’s generally less than 3,000 kelvin. It’s similar in temperature to halogen or incandescent light and delivers soft illumination.Cool white: At 4,100 to 5,000 kelvin, cool white is more of a blue light.Daylight: At 6,500 kelvin, the daylight setting simulates sunlight. This temperature light is often used to backlight a subject.