Many of the wireless controllable lights/plugs support IFTTT (
https://ifttt.com/). You can set up IFTTT to act on any number of triggers. I suspect you can get the ELK to send out a email or text message when the garage door zone status changes with a unique message based on if it is opened or closed. Then trigger the light using IFTTT.
Here is what it would look like:
- Garage door opens
- ELK sends out the message "opened"
- IFTTT reads the message and sends the light a command to turn on
- Garage door closes
- ELK sends out the message "closed"
- IFTTT reads the message and sends the light a command to turn off
This will allow you to integrate a wifi light bulb with relative ease and it will only cost you the price of the wifi light bulb.
I did this with my Christmas lights and window candles this year. I always hated walking around and having to turn the window candles on/off in each room so this year I bought inexpensive wifi plugs (you can get them for less than $5 each) and used one in each room for the window candles. I integrated the wifi plugs with an ELK M1 and CQC. I triggered the lights to come on/off based on time and/or alarm status. For example, when the alarm was "armed night", CQC would read the change in the ELK arm status, and send a command over a URL address (a "webhook" in IFTT) and IFTT would read that command and turn the candles and Christmas tree lights off. It worked great and was inexpensive enough that I simply packed the plugs up with the decorations for next year. An added bonus is that all this works with Google or Amazon assistants, so if I wanted to turn the Christmas tree or candles on/off I could just speak the command to my Alexa as well.