Cli-Mate’s 5‑Speed Controller is a manual fan‑speed unit for ventilation equipment. Part of the CL‑A series, it provides five fixed speed steps via a front dial and a power switch. The IP44 splash‑resistant enclosure and glass fuse offer durability and basic protection. An emergency pushbutton bypasses the dial to drive connected ventilation or gas‑supply lines at 100% output if the control knob or fuse fails, ensuring continued operation. The unit runs on 220–240 V, 50 Hz single‑phase power and measures 230 × 150 × 80 mm. It is offered in multiple current ratings to match load needs: 5 A, 7 A, 11 A and 13 A. Typical uses include setting extraction fan speeds in small to mid‑size indoor grow rooms.