I researched it to figure out whether to get the high Kelvin temp (6500 deg.) or low (3000). The low number is closest to the spectrum of the incandescent bulb. The high temp is recommended for industrial or graphic arts applications where you need the best, true color rendition.

You Like Blue Light! This is a daylight balanced bulb, so it looks kind of blue at night (like daylight... ha hah!) I wouldn't recommend for, say, a diningroom fixture (like I unfortunately did), but overall a pleasant, sort of flourescent light. Recommend for those willing to take the "mixed light" risk.

saves money ,and lasts long