Item description from the seller

Operation Mode	OFF-NONE-ON
Current Rating	1 Kiloamps
Operating Voltage	1 volts
Contact Type	Normally Closed
Connector Type	Clamp
Brand	BWESOO
Switch Type	Mechanical Switch (Rotary)
Terminal	Screw
Material	Acrylonitrile Butadiene Styrene
Item dimensions L x W x H	1 x 1 x 0.2 inches

About this item

Multi-Speed Selector: This 4-position rotary switch allows you to control 3 fan speeds plus an off setting for your ceiling fan.
Convenient Controls: The integrated push button enables easy fan speed adjustments without needing to reach for the pull chain.
Convenient Design: Featuring a button fan speed governor and fan isolator switch, this unit provides professional ceiling fan wall controls in one compact package.
Versatile Compatibility: Designed as a universal replacement, this switch fits most standard ceiling fan models.
Easy Installation: With straightforward wiring, this fan isolator switch can be quickly installed for convenient wall control.