Zigbee Bulb with These Features

#1

Does anyone know of a good Zigbee bulb with these features? Here’s my wish list:

  1. Zigbee A19 dimming, 2700K
  2. acts as a Zigbee hub
  3. return to previous state (power state, brightness level) after recovering from a power loss
  4. reports power (watts)
  5. less than $10 per. $5 is better.

I have a couple of Sylvania bulbs, but it does not do 3 nor 4. I’ve also looked at Cree and others, but none have the whole list.

#2

you can do #3 by recording current levels to a variable. I have something similar.
other then that PH hue app power failure feature but I haven’t really use it yet…

#3

But, to use that feature, I have to recognize that power was restored. So far, the only way I found to detect that power was restored is to poll the device every few minutes to look for a level of 100%, which is not something I do in any setting I have for the bulb. But if power comes back on, it will not restore to the previous level until the next polling time, which means it is at 100% until then, which is a real problem if the previous state was power-off, so you go from dark to 100%, then sometime later to dark again. Oops!! I have not found a way to Trigger when power is restored.

BTW, power restored might mean turning on the power switch that controls that lamp after having turned it off.

#4

A few things to keep in mind with this.

  • Most bulbs jump to 100% brightness when power is restored
  • Once it has power, it takes 10-30 secs for the device to reconnect to the ST hub
  • Once it reconnects, automation can happen

What I do is:

  • Find a bulb that jumps to 100% brightness when power resumes
  • Make sure none of my automations ever push brightness past 99% (do not skip this step!)
  • Create a simple piston to catch when power returns.

pic

This trigger will always fire as soon as the bulb connects to the internet.
(if the whole house was without power, it may take a bit longer for the other devices to reconnect)

Pro Tip:

Intentionally killing power to a Smart device will always add a delay before things return back to normal.

Also, killing power to a device that is acting as a Mesh repeater, will potentially impact your other devices that were relying on that for smooth data transfers.

A better strategy (to prevent both of these) would be to keep power going to that device 24 hours a day.

#5

I see, trigger if >99%. I’ll try that.

#6

Yes… There is only one condition in my piston… so it is treated as a trigger.
(I prefer my “Power Restored” logic in it’s own piston, with a single trigger)

#7

I found that some of the bulbs I have will not respond to just the >99% trigger. So, I now have 2 triggers,

if switch changes to On
or
bulb:level rises above 95%
then
if bulb:level>95%
then bulb:level=something else

I’ll see how foolproof that is. Thanks for the suggestion.

#8

Some bulbs never register beyond 99%…
Changing to: “IF Bulb level is greater than 98%” does the trick.

Just remember to also:
Make sure none of your automations ever push brightness past 98%