Yes I have a Hyrrofarm remote ballast I've had it for years and it humms loudly if on the floor or if it is vibrating something up against it. I put it up on a couple of heavy duty net pots to absorb the vibes and now it is more quiet. But I can still hear it though.

Herbus
Herbus Reviewed by Herbus on . Ballast Buzzing Are ballasts supposed to buzz or humm like mine (which HARDDON donated so selflessly)? Also is it completely necessery to have the bare ballast encased in a metal container or any container at all? The reason I'm asking is because I took the light system HARDDON gave me apart to better suit my needs. It was one of those all-in-1 mini systems where the ballast the hood and the light are all together. Any info would be greatly appreciated. Rating: 5