SMSCOM MK2 Lite 4.5A Twin Fan Controller Bulky The top tray sits directly

The top tray sits directly onto your GT reservoir base

With powerful fans

The high phosphorus and potassium support energy transfer

works with any dosing system you throw at it

Budget growers who want proven performance without paying premium brand tax

SMSCOM MK2 Lite 4.5A Twin Fan Controller Bulky The top tray sits directlySMSCOM MK2 Lite 4. 5A Twin Fan Controller Automatic Temperature Control for Intake & Exhaust Fans Best for: Growers who want plug and play climate control without faffing about with manual adjustments or complex setup Our thoughts This 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