Check out the top of the thread. There's a lot of good info there. Bottom line is almost any recognizable brand passes these days. The GrowAmp and the Phantom were both very quiet when we tested them.
-Greg
Sorry I missed this, but as an electronic engineer who designs ballasts I can say this:
1. Faraday cage = bad idea. Expensive, hard to do well, not typically effective if DIY.
2. Radiated EMI is usually worse than Conducted.
3. I cooked up thge AM Radio check in an article a while back, and...
This is a new product so there are no pictures of people using it just yet. We are setting up a few members of this forum, recommended by others here, to do that very thing. We should be sending those test units out this week :)
We will also be sending units to Grozine and Garden Culture...