The Lynx Accessory Switch Kit is designed to power a Lynx accessory such as a side burner or sink without a connection to the grill. This kit enables the Lynx blue LED lights to turn on with the push of a button. This transformer is needed to power Lynx appliances if you do not own a Lynx gas grill. The kit contains a transformer and mounting bracket as well as a switch assembly with a mounting plate. One LASK transformer kit can power up to four Lynx appliances. If you own a Lynx grill and more than three Lynx outdoor kitchen accessories, you will need this transformer kit. A wire harness is also included which allows you to adapt a Lynx accessory made before 2009 to the switch and transformer. If you need additional wire between your grill and accessory, you will need an LPEK extension wire (sold separately).