Product Name: Best Selling Excellent Made in China Greenhouse Automatic Window Opener Window Actuator Electric Window Opener Model NO.: single chain window opener Brand: Sunline Electric Current Type: DC Driving Type: Electromechanical Structure: Chain Usage: Motorized Window,Skylight,Sunroom Input Voltage: DC24V Working Current: 1A Push/Pull Force: 400n Stroke: 300mm,400mm,500mm,600mm Controller: DC Radio Receiver+Transmitter+Sensor Trademark: sunline Transport Package: Canton Specification: DC24V/400N Origin: China HS Code: 8537101990 Product Description DC24V single chain window opener/DC24V single window actuator for skylights1. DC24V safe voltage2. Push/pull force 400N3. Simple but delicacy design,low noise operation4. Sandblasted oxidative surface treatment5. Silver color standard,other colors can be customized6. Flexible optional installation7. Electronic overload cut off8. Endurance tests(30,000 cycles) are carried out9.Requires receiver(can choose wifi function) and RF transmitter,can also be equipped with a rain sensor,smoke alarm sensor10.Stroke:200mm,300mm,400mm,500mm,600mmautomatic control system