{"product_id":"smscom-mk2-lite-4-5a-twin-fan-controller","title":"SMSCOM MK2 Lite 4.5A Twin Fan Controller","description":"\u003csection class=\"gh-product-listing\"\u003e\n\u003ch2\u003eSMSCOM MK2 Lite 4.5A Twin Fan Controller — Automatic Temperature Control for Intake \u0026amp; Exhaust Fans\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBest for:\u003c\/strong\u003e Growers who want plug-and-play climate control without faffing about with manual adjustments or complex setup\u003c\/p\u003e\n\u003cdiv class=\"gh-our-thoughts\" role=\"note\" aria-label=\"Our thoughts\"\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eOur thoughts\u003c\/strong\u003e\u003cbr\u003eThis is the controller we recommend most to growers stepping up from manual fans. Simple three-dial setup, no wiring needed, and it actually does what it promises — holds your temperature steady without running your fans flat out all day. One we sell a lot of for new growers building their first proper setup.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003eThe SMSCOM MK2 Lite is a \u003cstrong\u003edual-socket fan speed controller\u003c\/strong\u003e that automatically regulates both your intake and extraction fans based on temperature. Plug your fans in, set your target temperature with three simple dials, and it calculates the exact speed needed to keep your room stable — no overshooting, no hunting around, just steady airflow. It's the kind of controller that's been trusted in UK grow rooms for years because it does the job without drama.\u003c\/p\u003e\n\u003ch3\u003eHow it compares\u003c\/h3\u003e\n\u003cp\u003eThis sits in the sweet spot between basic manual dimmers and premium smart systems.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProper automatic temperature control — fans speed up and down smoothly as your room changes temperature\u003c\/li\u003e\n\u003cli\u003eSimpler and cheaper than WiFi-enabled controllers, with no app faffing required\u003c\/li\u003e\n\u003cli\u003eMore affordable than silent Hybrid models, though you may hear a slight buzz at low speeds\u003c\/li\u003e\n\u003cli\u003eFive-year warranty backing it up\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eYou're paying for reliability and ease of use, not for bells and whistles you won't use.\u003c\/p\u003e\n\u003ch3\u003eUsage guidance\u003c\/h3\u003e\n\u003cp\u003eSetup takes minutes. No electrician, no hard-wiring, no complications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBasic installation\u003c\/strong\u003e\u003cbr\u003ePlug your intake fan into the left socket, extraction fan into the right. Plug the unit into the wall. Done. The temperature probe (5 metre cable) goes near the centre of your room, away from direct light or heat sources.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSetting your controls\u003c\/strong\u003e\u003cbr\u003eThree dials control everything. Left dial sets your minimum fan speed (the slowest they'll run — useful if you're using oversized fans). Right dial sets your maximum speed (caps how hard they work). Middle dial sets your target temperature. The unit then automatically calculates the exact speed needed to hit that temperature, moment by moment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTemperature management in practice\u003c\/strong\u003e\u003cbr\u003eIn summer, fans speed up to cool. In winter, they slow right down to avoid overcooling. The MOTION FLOW software adjusts speeds gradually, so you don't get temperature spikes — it's one of the reasons this controller keeps rooms so stable.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNegative pressure control\u003c\/strong\u003e\u003cbr\u003eBy controlling both intake and extraction simultaneously, you can dial in a balanced system with proper negative pressure. This keeps odours contained and fresh air flowing steadily — exactly what you need.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNoise consideration\u003c\/strong\u003e\u003cbr\u003eAt very low speeds, you might hear a slight buzzing from the fan motors themselves. This is normal with software-controlled fan speed adjustment. If silent operation is a priority, the SMSCOM Hybrid models run completely silent — but they cost more.\u003c\/p\u003e\n\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eType: \u003cstrong\u003eSoftware-controlled dual fan speed controller\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eMaximum capacity: \u003cstrong\u003e4.5 Amps (per socket)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSockets: \u003cstrong\u003eTwo independent outlets for intake and\/or extraction fans\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eTemperature probe: \u003cstrong\u003e5 metre cable, ±1°C accuracy\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eControl method: \u003cstrong\u003eThree mechanical dials (target temp, min speed, max speed)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eTemperature range: \u003cstrong\u003eAdjustable via dial\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSoftware: \u003cstrong\u003eMOTION FLOW — gradual speed adjustment to minimise temperature fluctuations\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eInstallation: \u003cstrong\u003ePlug-and-play, no wiring required\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003ePower socket: \u003cstrong\u003eIEC socket (standard kettle-type connector) for extended cable options\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSafety: \u003cstrong\u003eReplaceable fuse protection\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eWarranty: \u003cstrong\u003e5 years\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eAvailable in: \u003cstrong\u003eUK, EU, Swiss, and AUS plug configurations\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho this is for\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFirst-time growers setting up their first proper climate control\u003c\/li\u003e\n\u003cli\u003eBudget growers who want proven reliability without premium pricing\u003c\/li\u003e\n\u003cli\u003eAnyone running 2-4 tents or a single larger space needing temperature stability\u003c\/li\u003e\n\u003cli\u003eGrowers with oversized extraction fans who need to dial them down in winter\u003c\/li\u003e\n\u003cli\u003eOperators who prefer simple mechanical controls over app-based systems\u003c\/li\u003e\n\u003cli\u003eAnyone tired of manual fan adjustments or temperature swings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eParticularly well suited to setups where \u003cstrong\u003econsistent, hands-off climate control matters more than advanced features\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eOur take\u003c\/h3\u003e\n\u003cp\u003eThis is a proper bit of kit. The SMSCOM MK2 Lite does exactly what a fan controller should do — holds your temperature steady, balances your airflow, and lets you get on with growing without thinking about it. It's been proven in UK grow rooms for years, it's got a solid warranty, and it doesn't ask you to learn an app or call an electrician.\u003c\/p\u003e\n\u003cp\u003eIf you're building a new room or upgrading from manual control, worth picking up while stock lasts. Does exactly what it should, day in, day out.\u003c\/p\u003e\n\u003c\/section\u003e","brand":"SMSCOM","offers":[{"title":"Default Title","offer_id":47916370919594,"sku":"90995","price":128.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0053\/5540\/5400\/files\/smscontrollermk2lite4.5a_81633457-459f-4b74-a0b3-55c069d95e25.jpg?v=1769192605","url":"https:\/\/growershouse.co.uk\/products\/smscom-mk2-lite-4-5a-twin-fan-controller","provider":"Growers House ","version":"1.0","type":"link"}