TP-Link Smart Wi-Fi LED Bulb, LB120

2 year usage update!Purchased in 2017, it’s now well into 2019 and these have worked flawlessly with my ecobee 4 Alexa voice command and after several power outages. They are one of the most reliable smart home devices I have installed.I have changed my review from 3 to 5 stars because the connection dropping seems to have stopped and when I power the light off and on again the connection seems to reconnect its self now. I was able to save our router password directly into the app for all paired light bulbs so re connecting after a power loss or has become easy! I have since purchased three more additional LB 110 bulbs and through some confusion and difficulty I eventually managed to pair them through the Kasa app and to Alexa. When pairing multiple light bulbs be prepared to only power on and pair one at a time as only one will show up at a time in the WiFi settings.More importantly I was able to group together lights that are in the same room or in the same light fixture for easy voice command operation. Additionally I can easily create scenes that auto dim my lights and change to my desired brightness. I love that it allows me to dim my normal bedside lamps.This was the fist smart light device I have purchased and I bought it because it didn't require the use of a hub (smart things, wink etc...). Setting it up was fairly easy and pairing it with Alexa was slightly confusing.1. First you must download the Kasa app2. click on the device you want to pair with Alexa3. Click in the upper right hand corner on the three lines with circles on them aka "settings"4. Click on "remote control" and you will be prompted to register for an account5. Verify your account via the email you are sent6. reopen the app and swipe to turn on the remote. I kept trying to push and i kept running into error messages.Why I chose these over the Phillips Hue is because they don't require the additional use and energy drain of an extra bridge/hub. However if I would have outfitted more than 4 lights in my house then it would have been cost effective to have purchased the Phillips Hue starter kit and four pack smart bulbs.UPDATE: The good news is that the bad news has been resolved!!The bad news!!!It is important to understand that if you manually turn off your lamp or other fixture then this will deprogram the light bulb from your router. Ideally I would like to have one app to control all of my light bulbs but these do not seem to be practical because we live in a highly prone power outage area where we lose power at least six or more times a year and we would have to re program four different light bulbs each time. The programming processes is quit lengthy requiring your router password each time. I wish the router password would auto save into the app and in that case I would gladly outfit out home with these bulbs.The LB 120 seems more gimmicky than useful, the light doesn't seem to actually provide any increase in brightness as much as it does color change. The one benefit is that the cooler or "bright" light setting seems more appropriate for day time use.I will be uploading a video showing the range of color changes through the 9 different colors as well as the dimming ability. The worst is that you can't set up motion sensing triggers without buying an additional hub :(

Update. I can't explain why it happened but things are now working. The only thing different was that I used the voice command to discover rather then the app interface. Every time I tried using the app interface it would not discover anything, used the voice and it found them just like that???? So I'm changing my rating to 4 starts as it isn't perfect yet but at least it is functional now.I'm glad to hear this is working for some people with Alexis but it is not for me.The bulb works with a phone and tablets using Kaza. I was able to do a firmware update to the bulb and that seemed to work well. I was able to turn the light on and off from my phone while out and about so I was happy about that. All functions working well that way. And yes I turned on remote control "ON" from the app. So at this point I have a working bulb, at least it and Kaza work together, access from both a phone and from a tablet.When I went to set up with Alexia the Kaza page said I needed a new version of Alexia and I update that and the message went away, so I take it I have the right version of the app now.Getting Alexa to work seems like it should be simple, but together with a pretty large group of people having problems is not fun especally when you have no idea what the problem is.In the Alexa app using the Skills I found the Kaza app and it appears to link my account. So now it was the simple matter of managing the home devices.... Add Device, a red banner appears across the screen "Discovery failed". It is really fast, I count one thousand one, one thousand two and there it is the error message. This feels like it never really goes and looks for anything but I could be wrong.....I have reset the bulb by on/off cycling 5 times and setting everything back up again but the error never goes away. I have tried removing the apps and re-installing them, I've power cycled the units, I've tried resetting my router and about anything else that seem like it could be remotely involved.This is my first experience with trying to get Alexia to work for controlling a light and it is not going well. Just can't imagine what the problem(s) are.

Just got these last night, paired them up with my echo dot and programmed them for daily use! My primary reason for getting a few of these bulbs was to utilize them as wakeup/daylight alarms in our basement apartment. We don't get a ton of natural light in our apartment so I wanted to test if these worked for that purpose. It took a little calculating and adjusting but I think I've got a good formula down for gradually increasing the light intensity and kelvins/temperature through the Kasa App.A tip for those that have asked if you can link multiple lights or group them to turn on and off. You can't accomplish that in the kasa app itself. However, when you add the bulbs to your "smart home" section in the Alexa app, you can most certainly group them to turn on/off together. For example, I just have to ask Alexa to turn on the bedroom now as opposed to asking for night stand one and night stand two.Here's the sequence I came up with for timers and light intensities to be used as a wakeup/daylight alarm. Obviously you can adjust the time to better suit your needs! My formula spans over the course of 18 minutes with 7 timers (because there are 7 different kelvin readings available on this particular bulb) in increments of 15% (after the initial 10%) every 3 minutes. If you are using more than one bulb as I have for this application. You will have to program them both separately in kasa.6:42AM 10% 2700k6:45AM 25% 3000k6:48AM 40% 4000k6:51AM 55% 5000k6:54AM 70% 5500k6:57AM 85% 6000k7:00AM 100% 6500kI'll admit, the kasa app is a bit basic. But it does work well once you get past the frustrations. There is a slider to adjust the light percentage, which is very hard to pinpoint exact percentages (I wish you could just type in the precise percentage you'd like). And when you go back to adjust, let's say you wanted 10% light at 2700k, but you ended up sliding to 7%. When you return to adjust to 10% it changes the kelvin rating. So make sure to always select the color temp and percentage during every revision.Besides the few frustrations with setup, I'm very happy with the end result! I'll likely buy a few more of these bulbs, maybe even with the multi color option, in the future to fully automate our home.

I purchased one of these bulbs, thinking how cool it would be to have voice activated lights using Amazon Echo (Alexa), and I also felt excited by the ability to choose lumens (brightness) and color temperature for different moods or time of day. It's advertised as working with Alexa, and it does, but not before *several* steps. See for yourself - TP-LINK instructions:[...]After TP-LINK Cloud account setup, software installation on phone and enabling the Smart Home feature through the Alexa app on my Kindle Fire HDX, I had (finally) voice control. Immediately I became a fan of the cool and convenience factors of automated, voice controlled lighting. I programmed my bulb to come on at dusk go off at bedtime with Circadian lighting temperature and custom brightness. It was awesome. I found myself thinking, "Now if only they would create reliable and affordable food replicators and robot butlers, I'd be living large."So why only two stars, you ask?A few days in, the first stirrings of love for my Light emerged, and I'd serenade my bulb, "You light up my life. You give me hope to carry on. . . . ." Everything was magical. Then, one particularly overcast day, four in the afternoon seemed like eight in the evening indoors, so I said in a clear, commanding voice, "Alexa. Lights on."Nothing happens.Once more, with feeling, "ALEXA. LIGHTS ON."I found myself unilluminated, alone and talking to myself. I felt so confused when I could no longer turn my light on with my voice or hands - it just stood there shadowed safely beneath its lamp shade, laughing at me sitting in the dark, barking commands to no one. It was then that Sonic Youth's Lights Out chorus rolled through my consciousness: "It's lights out for you. Lights out for you. There's not a hell of a lot you can do. It's lights out for you.">:-O Rebellion, is it?? Not in MY house. What I say here goes, see?!?Still nothing. *heavy sigh* I checked the Wireless network. Up and running, and everything else was working fine . . . what's the problem then?? Like the human machine, I believe electronics are imperfect and it's expected to experience occasional glitches. So, Network powered down and unplugged for the cursory 30 seconds then restarted. TA-DA!Nope. Still no connectivity between TP-LINK KASA app on my Android phone and TP-LINK bulb, though the wireless network is working as expected with other wireless devices. If, like me, you'd think that using a router of the same brand would ensure problem free networking, you, like me, would be wrong. Even my TP-LINK AC1900 router couldn't hold the bulb's attention. Hmm . . . Ended up having to also uninstall and reinstall the KASA software on my phone to get the connection back. What a pain in the @$$!Might be there's a simpler solution, but truth be told, I couldn't justify spending much of my time troubleshooting a $34 light bulb. I did go to TP-LINK support, but I'm of the mind that I'm not getting compensated for technical support, troubleshooting, or BETA testing, so why should I be expected to do so for a product I purchased? It's new and it should just work without feats of emblazoned hoop jumping. Is that asking too much? I think not. Hence, the two stars.Just as I was about to send it packing and write a strongly worded letter to the manufacturer, I was bathed in glorious illumination. Yay! My light had not abandoned me entirely, but instead decided to work independently of me and logic, or so it would seem. How could something supposedly disconnected from the network have awareness of a schedule stored on the Cloud??A few days later, lost connection AGAIN for twice in less than a week! That was the end of the line for this capable but works-when-it-wants bulb. Packed it up and sent it back. Now I have to turn my lights on the old fashioned way, but at least I know my lights will illuminate rather than frustrate me. [Edited for redundancy.]

I have this bulb currently setup in one of my lamps I use for when I paint miniature models and such. And the ability to adjust the color and brightness is awesome. Not to mention that I love the handsfree nature of things. Sometimes my hands are covered in paint, or glue or the like and its nice to be able to just ask Alexa to turn on my lamp for me. its also just convenient otherwise, due to my setup turning the lamp on and off manually can be kinda annoying when im sitting down as because its so high up I have to stand up and reach up onto my bookcase its on to turn it off. But since my desk is also where my computer is I often will stop painting to play a game with friends or something like that, and to reduce glare I turn the lamp off. Lets just say my friends often hear me telling alexa to turn my lamp off now haha.My only cons for this are the price, and the fact that it seems to be locked to how many different shades of color you can go between. Theres no true infinite slider like the app would lead you to believe. But its more like a set number of presets you can swap between. Which dissappointed me because in all honesty right now the light where I have it is either too yellow or too blue for my model painting. But I plan on fixing this simply by buying another bulb of the same type putting in a second lamp and having it shine yellow while the one I have now shines slightly blue. this will even it out well enough I think for me.