4 Inch Smart Inline Duct Fan with GGS Temperature Humidity Controller, Integrated App Control, 205 CFM Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics

I have a couple competitor fans that are of similar style, they either run full speed or have an analog turn dial speed controller, all are 4", I'd say the Spider at 50% puts out almost as much air as the others on full speed. I'm using it to pull air from a server rack, my temporary installation of the fan, it's a bit louder than it should be because of my ducting on one side and the lack of it on the other, plus it's 22" away from my head. Back to the controller, I like how you can can control lights, vent fan, blower fan, not that I'm using the others, but it's nice it can be done from one spot. I'm doing it by temp, I set 40% always on speed and a ramp up to I think 60% above 28C. Once it's in final home I'll tweak the settings a bit more. If I had to list 2 "wishes". 1. i wish I would have gotten the model with the mounting cradle vs the sling. 2. I wish the fan ramp up was more of a ramp up, like a PWM in a computer where ok it's at 40% and 24C, oh it's 25C now, lets ramp up the fan a little to say 45% to see if it'll bring them temps back down rather than wait til 28C and instant full 60% or 100% if that's what you set it to.

Erg makkelijke en krachtige ventilator! Met degelijke controller en erg licht van gewicht. Loopt traploos op en af, makkelijk in te stellen en doet wat ie moet doen. Weinig geluid ten opzichte van de normale afzuigers.

My fan did not come with an mounting bracket.

Con Spiderfarmer si può stare tranquilli. È tutto al top di gamma.

El Spider Farmer fan de 4 pulgadas es un producto muy completo en cuanto a características y también en cuanto a accesorios, pero es en éste apartado donde cabe destacar que la placa naranja para fijarlo en pared/techo que sale reflejada en fotos no viene en la caja. En su lugar vienen por defecto dos anillas para poder colgarlo.