Somfy LT50 Standard 4 wire motors offers a complete range of torques 35-440 in. lbs. and motor speed 14-38 RPM for driving the majority of rolling shutters,roller shades,interior and exterior sunscreen products. The LT50 is also available in 220 volt special order only. Capability to be used with Somfy's line of RTS controls and sensors when motor is used in conjunction with a Universal RTS Receiver.