I received this light about a month ago Its built extremely well even the chord grip is a absolute beast.
The App was easy to use and setup, plus they have videos online on how to write recipes. Output seems to be spot on with their claims though its a bit difficult to measure the PAR because of their specialized lenses. but I have tomatoes under it and they seem to be doing fine so far in Veg.
Oh yeah Im using this as a single grow light in a 4X3 tent .
I only have one complaint, and that is that it does not have a real time clock built in so if you power cycle its gonna restart its internal clock or its going to need to connect to the app .
This light was back ordered everywhere and growlightcentral had the lowest price so figured id try them, they kept me up to date and emailed me every step of the process of when things were expected coming from the factory. I hadent used this site before so theres always the nerves on that but no issues whatsoever with these guys.