Top positive review
Reviewed in the United States on December 15, 2021
At last, a remotely-colored bulb that was designed well.
I am an electronic engineer, so I feel totally qualified in writing this review.
Most of these Cell Phone APP-controlled colored lights are based on ONE BAD CHINESE DESIGN, which connects directly to your Wi-fi, and must be assigned an internet IP ADDRESS to connect.
Since IP ADDRESSES can be continually changed, there is NO SET IDENTIFICATION FOR YOUR PURCHASED LIGHT. This means that if the connections are intermittent or unstable, THE UNITS CAN "FORGET" THEIR IDENTITY AND NOT WORK UNTIL RE-ASSIGNED.
As if THAT isn't bad enough, some not-so-clever Chinese guy thought he'd SAVE A PENNY IN MANUFACTURING by NOT putting in a momentary SET push-button, to reset the unit and set it up for receiving an ID setting.
Instead, they all want you to TOGGLE THE LIGHT'S POWER ON AND OFF MANY TIMES, to get it into Set Up Mode.
Two things happen here - first, the Wi-fi often LOSES CONTACT with the light, so it forgets its IP NUMBER and you are back to units that just flash a bright white light.
Secondly, the local power company can have power problems, and that interruption causes the units to ALSO go into RESET, flashing their lights bright white.
This happens ALL THE TIME.
But it is important to know that THIS PRODUCT works differently from those mentioned above.
Instead, the units are operated by BLUETOOTH, which comes out of your Cell Phone, not from a weak Wi-fi Hub. So if you have the Cell Phone with you in the room (within 300 feet of the light), the units will operate, which is convenient since you must use the APP anyway to operate the light.
Most importantly, Bluetooth devices (such as these lights) ARE ASSIGNED A FIXED ID WHEN MANUFACTURED.
So they CAN'T RESET and lose their IDS.
So all one does is turn the lamp on, bring up the Cell Phone APP to seek out nearby Bluetooth devices (be sure that your Bluetooth Mode is ENABLED on your Cell Phone), and let it lock in.
The phone APP also connects to Wi-fi, but for other reasons - one is to register the purchase with the manufacturer, and the other is to LINK WITH ALEXA, so you can have her operate the lights by voice command.
All in all, this lamp is TROUBLE-FREE, and a pretty neat design.
I intend to buy many more of them, now that I ran tests on my first samples.