Although many video lights can be set to different color temperatures, this is only useful if your camera app has a manual white balance control. Camera apps, like the iPhone native camera app, only have auto white balance (AWB) and will automatically adjust to the color temperature of the light. They try to adjust the image so it looks as if it were taken under normal white light. To take advantage of the different color temperatures you will need to download a camera app with manual settings. However, skin tone can look richer under warmer (yellow) light and professional photographers and videographers may sometimes deliberately shoot to take advantage of the color effect. In a Zoom meeting, we would suggest sticking to white light unless you are trying to match the color temperature of the ambient light.