Today I had the pleasure of playing with two amazing products from Vivosun. They are a large producer of indoor and outdoor growing products. I was looking for a way to bring fresh air into my grow room and decided to try this little set up.

First I wanted something small so Vivosun’s 4 inch 195 fan was the perfect match for my needs. I also wanted the ability to control that fan’s speed so I decided to also buy the speed adjuster.

Overall I was very pleased with my results and this fan did the exact job I was looking for. The controller allowed me to reduce the speeds on colder nights and that’s exactly the problem I was trying to solve.