It is definitely possible to turn any battery driven and ESP based led light into that. However, anybody has ever found this product out of the box?
i quess problem would be quite short battery life, as it cannot really sleep ?
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I was thinking this way. All sensors send data when they are hw-triggered: opened doors, motion, temperature change but still, both motion and temperature have to work constantly and they are powered by CR2032 batteries. I need a light to a room where’s no plug and we have a solution with pir sensor and three AA baterries that is not integrate to HA which makes me crazy… It works for about a month. I dont care whether I have to charge it once in a month, I need light in a black room without a plug.
Agree, there are many sensors out there running on battery, but they will sleep most of the time other than waking up on regular schedules (once in a day maybe, to inform the coordinator that they are alive) and being triggered by external sensors (motion, light), so they can preserve battery.
ok, but what is the problem to wake up a device on motion (as montion sensor) during the sleep and turn the light in that moment? I do not see a problem here. As I said, my led light without zigbee lasts for a month and it turns on for a minute thirty times a day or more.
And there are plenty of decorative battery powered lights, especially for Christmas times. It has been asked already.
So the only problem is it isnt in HA ? Do you need to control it via HA ? Or you just need to know its state ?
Isn’t this “only problem” the reason why we are here? 
Yes, the only problem is that I want to control it and know states of everything.
Obviously yes, but sometimes you dont need everything 
Like me, my outside light uses it own PIR, and it doesnt drive me crazy 
Maybe something like this with some mod, and PIR would work : https://www.amazon.com/BENEXMART-Google-Assistant-Remote-Control/dp/B07T9KBK5L
I bought LED strip controlled by zigbee on USB but the base problem was that powerbanks tend to turn off when there is not power drain. They apparently turn of when some conditions are fullfiled such as less 100mA within 10s. So I created an automation to ping the powerbank for 500ms every 10s or different but without success.
Right now, it looks that the solution will be an USB “power pack” that is not a “power bank”.
Something like this: Always On Battery Packs for IoT (voltaicsystems.com)
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Xiaomi power banks support this out of box, you just need to press twice and it will stay on.
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You probably have this feature on your mind? From the manual:
“Small current discharge: when Mi Power Bank Pro is not charging, double press the Power check button to enter Small current discharge mode to charge small devices, such as Bluetooth headphones and smart bands. The indicator LEDs will turn on one by one in succession, indicating that Mi Power Bank Pro has entered Small current discharge mode. To exit Small current discharge mode, press the Power check button once.”
Yes, they are working as described:-) i have couple of them
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