To me, "warm" LEDs look natural like daylight. I suspect something in addition to temperature is causing the "warm" color of the sun. Maybe it's the massive wattage of the sun?

"Cool" LEDs look unnatural to me. I'm just wondering if the 4000k in this flashlight is the annoying type of cool that I don't like. For example, I don't like the color of the low wattage light bulbs in Walmart that are advertised as "cool white".