Amazon.com: 1 Set H7 Halogen Lamp Holder Low Beam Headlight Bulb Adapter Bracket For V VV G/o/lf 7 MK7 Ti/gu/an To/ur/an Sh/a/ran Scir/oc/co 5K0941109 : Automotivewill these work for both low and high beams ? i cant seem to find out if they use different retainers.