Dave Fawthrop wrote:

White LEDs are very *white*

IME they are very /blue/ especially when compared to incandescent
lighting. I have an LED torch with the option of 3 hyperbright LEDs,
6 hyperbrights and one incandescent bulb. you have to cycle through
all three states to switch on and off and the /blue/ spectrum of the
LEDs is in stark relief to the yellow of the incandescent bulb.

very blue, very cold.