LED Light Bulbs 3-Way 50/100/150W Equivalent YAMAO A21 5000K Daylight Light Bulbs UL Listed 800/1500/2200LM (4 Pack)

One of the five that I ordered already came apart. The body separated from the threading after the glue gave out between the two components. I would have expected much longer than a year of service from this type of bulb. To be clear, this is not a burned-out LED but a structural failure of the actual hardware. It was put into the lamp and has not been touched since it was put in place. It just fell apart physically in less than a year.

I have two bedside lamps on the walls. The 3-way bulb turned into a 1-way with the first lamp immediately. These were LED bulbs and may have been too advance for these 20-year-old lamps. I will check out the other lamp, soon.

Installed in 2 bed side lamps. Usually once-a-day would cycle through all 3 level and off. In less than 8 months both lamps inconsistently went through the 3 levels (sometimes the mid level would not function w/o additional cycling). My first reaction would be an attempt to tighten the bulb in the socket. Constant doing this eventually caused the base to loosen from the globe and breaking the connecting wires. The other bulbs were installed in table lamps controlled by a wall switch. Only occasional cycling occurred in these lamps (once or twice a month). These bulbs worked w/o problem. I returned the bulbs to Amazon and got 4 replacements. I was told that the replacements were by a different manufacturer. NOT true.With a 5 year written warranty I expect the bulbs to last more than 8 months.

Bulbs are heavy. Bulbs work fine bulb some bulbs didn't want to work in certain 3-way sockets-could be a socket issue or how the contacts are set up on the bulb.If you're looking for 3 way bulbs there doesn't seem to be a lot of choice.I previously wrote a bad review -they e-mailed me within a day and offered a refund.

Nice but the description isn’t clear on the light choice. I chose white instead of the one that will emit warm white. I wanted the warm look like a normal incandescent light. Had to pay shipping for return even though it says prime!

Using it to replace a regular incandescent bulb. Works OK - kind of heavy though.

Good 3 level brightness light bulb. I didn't know for sure what "daylight" meant, it's pure white, no yellow to it.

Have not had them long enough to know for sure about energy efficiency; but should help