Features: _x000D_ _x000D_ Controller ER-150 V-1B 2S powered storage system seamlessly integrates with the simple door closing system. _x000D_ High accuracy of the system, easy to operate. _x000D_ After connecting three sets of retractions on the controller, the system will automatically start the door system. _x000D_ The system will not be able to start the gate system if one of the three fallbacks on the controller is not connected. _x000D_ The system automatically recognizes situations where interface modes are abandoned, but other retractions do not work. _x000D_ _x000D_ Specifications: _x000D_ _x000D_ Condition: 100% Brand New _x000D_ Optional Type: Retractable System Controller, Retractable Landing Gear + Controller _x000D_ Controller:_x000D_ Working voltage: 5V - 6V_x000D_ Controller size: 53 x 32 x 10mm / 2.1 x 1.3 x 0.4in_x000D_ Controller version: v-1b (2S power supply)_x000D_ Suitable for 120mm-150mm EDF jet or other plane up to 12-15kgs_x000D_ Retractable Landing Gear: _x000D_ Working voltage: 7.4 v-8.4 V (2S li-po)_x000D_ Angle: 90 _x000D_ Speed: 5.2 seconds (5v) - 4.3 seconds (6v)_x000D_ Strut hole diameter: 12mm / 0.5in_x000D_ Torque: 15kg cm_x000D_ Retracted size: 27 x 80 x 22mm / 1.1 x 3.1 x 0.9in_x000D_ Retractable mounting plate size: 36 x 48mm / 1.4 x 1.9in_x000D_ _x000D_ _x000D_ Package List: _x000D_ 1 x ER150 Controller _x000D_ 1 x Plug Cable _x000D_ Or _x000D_ 3 x ER150 Retractable Landing Gear _x000D_ 1 x ER150 Controller_x000D_ 1 x Plug Cable_x000D_ 1 x Wrench_x000D_ 1 x Connection Rod_x000D_ 5 x Screw_x000D_ _x000D_ 1 x Nut _x000D_ (Based on your choice) 1Controller ER-150 V-1B 2S powered storage system seamlessly integrates with the simple door closing system. 2High accuracy of the system, easy to operate. 3After connecting three sets of retractions on the controller, the system will automatically start the door system. 4The system will not be able to start the gate system if one of the three fallbacks on the controller is not connected. 5The system automatically recognizes situations where interface modes are abandoned, but other retractions do not work.