The product is special designed Joint box (transformer +controller), for controller 24V Greenhouse roll up MotorsFor controlling the electric roll-up motor for ventilation, which is used extensively in greenhouse. Such as the solar greenhouse, vegetable greenhouse, culture greenhouse, multi-span film greenhouse and other assembled greenhouse, by which to open or close the side windows and top windows through the rolling of film.Feature:Greenhouse roll up unit controller24 DC to 110 v transform with controllerStable controller for greenhouse roll up unitGreenhouse ventilation machine controllerPerfect for driving 1~4 packs roll up motors at the same time.Controller with transformer, free to use 24V motors for greenhouse ventilationOne button to turn ON/OFF, easy Open/Stop/Close with toggles.Auto time controllerSave time save workingSpecifications:Input: AC 110VOutput: DC24VJoint box: Transformer + controlControl: Forward/ Stop / ReverseSwitch Style: Maintained (switch the toggles, the motors will keep running until the limit is reached.)The Loads Application: Motor,Linear actuators,etc.Size: 40*30*14cm/15.7*11.8*5.51inchWeight:7kgPackage Include:1 x Controller Box