Automatic Chain Window Opener Adjustable Length 100~400mm — Remote Control Optional

Adjustable chain window opener with stroke range 100~400mm. Remote-control operation is available when paired with the appropriate control board. Available motor configurations: - 24V 2-wire motor — operates with a 220V-to-24V control board and supports remote control. - 220V 4-wire motor — designed to work with a 220V control board. - 220V 3-wire motor — uses 220V power input, compatible with 220V systems, and can support a 24V 2-wire motor when connected to a 220V-to-24V control board with remote control.