[Input Voltage]: Double-pole in-line power cord switch, suitable for 2-core or 3-core lighting cables. "L" and "N" lines are r to double breaking and double closing. [Mid-Range Control Switch]: The pull-cord switch is convenient to control your lights, very useful and a great replacement for the old switch in the bedroom. [Please Note]: The maximum wattage supported by the Torpedo Switch in-line switch is 100W. Do not connect it to a light fixture over 100W, or you may burn this switch due overfeeding of the device. [ Material]: The middle rocker switch housing is made of sturdy plastic. Well made, the interior of the switch is well thought out. It is a durable and stable product that is also visually appealing. [Installation method]: Keep the neutral wire of the power cord, without cutting, cut off the live wire, strip the wire, solder the copper wire to the top of the arc clip in the switch, then close the upper and lower cover, and press firmly by hand.