SPECIAL VEHICLES NEED DECODER OR RESISTORS
SWEET TIPS:
Chrysler BMW Benz Volvo Dodge Jeep 2005 and up,Ford 2013 and up, Chevy trucks.
These vehicles systems are sensitive to led headlight bulbs, it may occur flickering or error. It's not bulbs quality problems, led bulbs can't support these vehicles in the market now. In this case, you need super decoder to fix it. For Dodge Ford or jeep may need resistor as well.
Some vehicles which need H1/H3 bulbs, may need to buy extra conversion cables.