@Gargron B/c I haven't seen anybody properly explain them:2600K - Warm, reddish white. Close to the old light bulbs.2700K - IMO pretty neutral. 2800K on the limit of "cozy" but generally fine.2900K - IMO this is a bit too cold/harsh but some people prefer this.3000K - Harsh, cold white. Common in fluorescent tubes and you can tell when it's used b/c everything looks super well lit. IMO only recommended to people with some sort of night-blindness.