The Blaster-X Control Switch is an optional accessory for all Blaster-X Tail Lights. This switch allows you to conveniently control the strobe mode operation of the tail light (intense strobe cycle, like hazards on steroids), and to program advanced features of the tail light. General Blaster-X Tail Light Programming instructions are available here. Check the instructions for your specific Blaster-X tail light for exact features. Advanced Programming Features The Custom LED Blaster-X 2nd Generation Programming Interface allows users to easily customize features of the tail light! The customizable features menu allows users to: Enable or Disable the Startup Sequence Choose from 11 different Brake Alert patterns (can also disable Brake Alert) Adjust the running light brightness within a preset range Adjust the brake light brightness within a preset range Engage Demo Mode, where the tail light cycles through all functions automatically and repeatedly Reset factory defaults What's Included Each Blaster-X Control Switch comes with a 24" long gray wire to connect to the tail light gray wire (control/program wire), and a 16" long black wire with ring connector for ground connection at battery or anywhere on frame. Note: This switch is not necessary for standard integrated tail light operation. Specifications Weight: 0.1 lbs Compatible with all Blaster-X Tail Lights 24" control wire + 16" ground wire with ring connector