H13/ 9008 Socket Type
Bi-xenon relay is designed only to be used with bi-xenon (dual beam) hid bulbs 
Includes 50W resistors wired to prevent bulb out messages or canbus issues such as found on Dodge/Chrysler/Jeep vehicles (can be cut off if not needed)
Includes two connector that connects to both side of your headlight. 
The purpose is to control the switching of your high and low beam fucntions. 
The harness connects to the vehicles factory OEM socket and does not require any cutting or splicing, using the OEM connections will allow you to turn on and off your headlights as well as high/low switching using your factory light switch.

Features:

50W load resistors are wired in 
Can help solve problems with flickering on some vehicles
Heavy Duty Relay Harness
Low & High Beam Functionality
Easy Plug-N-Play Setup
Advanced Relay Control Box
For 35W/55W HID Hi Lo Bi-Xenon installation only.
Wire length: about 4.5ft long, may not fit very wide trucks

Installation

Connect red wire straight to the battery positive pole.
Plug in long and short male connectors into the right and left side ballast.
Connect the small rectangle wire to the HID light bulb.
Plug in the last single female connector to one of your cars/trucks stock headlight connector.
Note that the red wire is connected to positive pole of battery and two black wires to negative pole & ground individually.
You can cut off the 50W resistors if your vehicle does not need load resistance