Since color temp has come up a lot, I created a mock series of images varying color temps. I used the photoshop raw image adjustment that allowed me to enter exact color temp values - so it should be close to real life. (Lighting design by John Garner.) Note that halogen MR-16's are between 2,700K and 2,800K. Most warm white LED's are 3,000K to 3,200K. As you see in the pics, there is a noticeable difference between 2,800K and 3,000K.