The Cloudline S-Series is AC Infinity's inline fan range, shipped as standard with a simple onboard 10-speed dial — no app or controller needed to use it out of the box. If you'd rather automate speed based on temperature and humidity, the same fan is also compatible with the UIS Controller 68 and AI controllers, or you can buy the T-Series version, which bundles the identical fan with a controller included.
10-speed dial included: Set a fixed speed by hand, no setup required.
Controller-compatible: Works with the UIS Controller 68 and AC Infinity's AI controllers if you want automation later.
Quiet EC motor: PWM controlled for low noise at any speed setting.
4" to 12" sizes: Covers everything from a small tent to a large multi-plant space.
S-Series or T-Series?
The fan itself is identical either way. S-Series comes with the manual dial in the box, so it's the cheaper way in if you're happy setting a fixed speed — you can still add a controller later. T-Series bundles a UIS 69 Pro controller in from the start.
Why buy from The Hydro Bros?
Fast UK stock across all sizes, with discreet delivery and advice if you're unsure which size fits your tent.
