ok so alot of lights come with detachable plates that can be switched out with round duct adapters
http://homeharvest.com/climatecontro...ngadaptors.htm
so i understand the concept of how and why and with that being said my question is does anyone have any experience with modding a hood in this way and how does it perform compared to cool tube style and /or a hood that is intended for venting
thanx