Questions and Answers for Cree 60-Watt Equivalent Soft White (2700K) A19 Dimmable Exceptional Light Quality LED Light Bulb (2-Pack)

A:  Apparently different LEDs have a different turn-off voltage. My guess is that your motion-sensing switch only turns down the voltage supplied to the lamp to a very low level, not low enough to turn off this lamp completely. Other LEDs with a higher turn-off voltage would go dark with it. I've noticed that different brands of LEDs, all supposedly dimmable, will dim differently in the same 3-lamp fixture even when a dimmer designed for LEDs is used.

A:  Some combinations of LED bulbs and electronic dimmers/switches just don't work together. Above all, make sure the switch is indeed designed for electronic bulbs (CFL & LED). If it is, my suggestion is to first try a different bulb. I sometimes encounter LED instability with fan remotes and dimmers/switches ... some bulbs work with one device but not another.

A:  this bulb dimmable the switch let little current through that why it do not go off completely

A:  These are more efficient than many earlier generation LED lamps, and with better electronics they dim properly to a lower intensity. The problem is actually in your motion sensor, which is probably of the old technology that is not compatible with LEDS. I had a similar problem in my garage, and replaced the motion sensor with a new LED-compatible model.

A:  Obviously your switch is allowing current flow in the "automatic off" position. Evidently these bulbs need less current flow than others to fire the diodes to emit light. I would not consider this to be a "defect" in the bulb but a factor in their dimming capability. I guess you will need to find a different bulb for this application or a different switch with these bulbs. Good luck.

A:  Yes it is. I have the package in my hand.

A:  Yes. These bulbs are rated for totally enclosed fixtures.

A:  yes

A:  mine are in enclosed ceiling light work well the globe not as hot as before

A:  I have used it in enclosed fixtures. I am not sure that I have seen any led bulbs with that restriction. CFL bulbs, yes. Typically restricted due to heat build up. Not normally a factor with LED bulbs. I cannot say, however, that these have definitively been cleared for that use.

A:  There should be no problem using it with a garage door opener, which is basically an on-off switch as far as the bulb is concerned.

A:  Yes, no problem.

A:  I've used these in openers without problems. Vibration does not seem to affect them as it does cheaper bulbs. Be sure that the temperature in the garage stays within the bulbs' recommended operating range (stamped on the bulb &/or package). Rated for use in enclosed fixtures, these bulbs are also more tolerant of temperature fluctuations.

A:  No. It created enough radio frequency interference that my garage door open range was reduced to less than 10 feet. I'll try to take these back and get another bulb which interferes less.

A:  This bulb is compatible with fixtures that use an A19 shape E26 base bulb up to 60 watts.

A:  My dimmer, possibly, functions the same as yours. It reduces brightness substantially, but does not go all the way off unless I put switch in off position. That works for me. I don't know if that indicates an incompatible dimmer.

A:  It could be. I had a dimmer that caused CREE bulbs to flicker. I went to the CREE website and found a list of compatible dimmers.

A:  You need to replace your present dimmer with one made for led lights. Home Depot has them.

A:  No humming. All I have heard from them is a little cha-ching cause they're saving me money!!!

A:  No

A:  I have not noticed any hum with the dimmer in any level of brightness.

A:  No

A:  Mine do not.