Baja, if I had to guess I would say 'cool white'. Also, after giving it more thought, I think that the tight fit (i.e. it didn't feel like it went in as far....that's what she said) might be due to the resister packs. I am so tried of standing on my head messing with the bulbs, I think I might try to remove the entire fixture so that I can get a better look at the fit of the LED's.