FAQ about Replacing H7 LED Lights :
Q1. LED light are flickering / There is error code appears on the dashboard.
A: MZS h7 led bulbs are canbus ready for 99.9% vehicles, but on a few sensitive models may require additional H7 led decoder/load resistor to be installed to solve compatibility issues, such as flickering, error codes, radio interference, high low fog interference, etc.
Q2. Installation problem.
A: MZS h7 led bulbs are plug and play in 99%vehicles, but some vehicles come with factory retainer clip will require specific h7 LED adapter to fix the led bulbs when replacing led lights. The specific h7 LED adapter is not included in the package, as not all models request a h7 LED adapter and different models request different h7 LED adapter, it's unrealistic to put hundreds of different h7 LED adapter in each package.
Q3. The heat sink of MZS h7 led bulbs is too large to work with stock dust cap.
A: Aftermarket dust cap will be needed.