Bests & Worsts Reviews from Amazon

Fast shipping! We ordered this inline fan to help reduce temperature and humidity in a 4x4 grow tent, and it's "almost" too big in terms of cfm, as this fan moves A LOT of air. Just make sure you have enough intake vents or a intake fan as this will suck a tent down with no problem! We run the fan on a temperature controller with the included speed controller set to 25% fan speed to exhaust excess heat. It's perfect for our setup. Pros: Robust all metal constructed case (impeller is plastic) and great mounting options Easy and quick to set up 20w on max 10w on min for electric Very quiet compared to other fans of same size Moves A LOT of air for size and power. It's a lot bigger than we expected in terms of cfm movement! Easy to install 4in duct to fan Price when purchased Cons: Can only use the included speed controller, not able to use a temperature or humidity controller that controls speed based on conditions or after market speed controller. Stuck using terrablooms. Price raised after purchase Nothing worth reducing a star for The first photo of the killawatt shows power draw includes running this fan at 25% a 6in clip fan on low setting, and a 135w quantum board turned down to 75%. 107 watts total usage! Great for seedling and getting them acclimated to the room. The second photo of the killawatt is this fan at 100% the light tuned to 80-90% (best efficiency for this light IMHO) 6inch fan clip fan on high and a heated Matt only uses 140 watt total. Great for veg phases for what we have growing. So if you're trying to save energy and still grow that is an amazing option! This setup in our area runs us around 8$ a month in electric cost. Haven't tried it with a filter yet, but we are planning on buying another fan and two filters for intake and exhaust from the same manufacturer, and we will update when we get to that point. Final thought: High quality, quiet, efficient fan. Worth the investment and we would definitely buy another! Only wish they hand an option to control the fan and speed based on humidity or temperature.