Below we detail two methods you can use to determine which piggy back adaptor you need to suit your high beam connector type.
Your vehicles owner’s manual usually will list all bulb types required for your vehicle. Usually this information can be found somewhere within the ‘Maintenance” section.
All headlight bulbs have markings on them which state the socket type. Marking which are either etched on the metal frame of the bulb, and other times you will find the etching on the plastic socket at the rear of the bulb. Note that some vehicle will need have dust caps which will need to be removing to provide access to the bulb.
Once this has been established our full range of piggy back adaptors can be found in this link