Features 1Intelligent home automation automate existing blinds and curtains in the simplest way. 2The motor can be set with upper and lower limit which can save power after power off. 3Support solar panel or charger power supply longlasting battery life and long service life. 4Compatible with all kinds of curtains blinds roller blinds easy to install and use. 5Support Bluetooth APP remote operation manual control easy operation. Specification Item Type: Blind Drive Motor SetMaterial: PCWeight: Approx. 523g / 18.4ozProduct Size: Approx. 165x42x38mm / 6.5x1.7x1.5inSolar Panel Size: Approx. 185mm / 7.3in1.Blind Drive Motor:Solar Panel (Built-In Battery):Battery Type: Lithium BatteryBattery Model: 7.4VNominal Battery Capacity: 1000mAh2.Solar Panel:Working Current: 70maH3.Support Functions: Bluetooth APP remote operation manual controlInstallation:1. Do not expose to strong direct sunlight the engine should be used or stored away from high temperature or humid places2. Choose a compatible drive gear3. Tighten the rope or chain to the main gear5. Remove the teeth from the rope or chain on the cover and then lock the cover6. Connect the solar panel or sensor to the blind motor please pay attention to the wire to prevent the wire from being entangled Package List 1 x Blind DriveMotor1 x Solar Panel4 x Accessory1 x Adapter1 x ScrewKit(2 x Screw 2 x White Accessory)1 x Double-Sided Adhesive Tape1 x Manual Note 1. Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.