Since she bought only two I installed them in our bathroom where we have a bank of two lights on a dimmer. Surprise. They dimm but not turn completely off. There is about 10-15 mA current still going in. One light bulb and LED combo shuts off compeletely. It seems to me that you have to have at least four LEDs for the dimmer (made way before there was even talk about LEDs) to switch completely off. The LEDs are FEIT brand. I put them in another room on ON/OFF switch. They have pleasant light color.