Due to the lighting fixture above the mirror in the bathroom having restricted sizing for how tall a bulb can be, I addition to being an E12 / Candelabra socket size, it was not possible to install a Phillips Hue bulb into this fixture. Now that Phillips has an E12 socket type of bulb I can do this. Note that I cannot use the dimmer switch with these (or any Phillips Hue bulbs) so I have installed the Phillips Hue Motion Sensor to trigger the lamps to turn on to the 6,500k color temp upon entering the room. Then I use a Phillips Hue Dimmer switch to adjust brightness and also turn them off. NOTE: This bulb does NOT offer COLORS. This is only for the white spectrum between WARM WHITE (approximately 3,000 Kelvin color temp) and DAYLIGHT WHITE (6,500 Kelvin color temp) and anything between those two. Also, just like the other Phillips Hue bulbs, when you cut power to them from a light switch, then power them back ON, they will default to the WARM/YELLOW color temp unfortunately. However, if they defaulted the lamp to the last color setting used, then no one would bother making much use of their ability to alter their color or scenes. So it seems to be by design that they are fighting lazy human behavior so that their product gets used properly.