Note:It is not recommended to install the item on vehicle headlight with projector lens, lens lose brightness.
1.Need Canbus Decoder/ Resistor: These LED bulbs can work well on most vehicles. But when they cause the flickering issue or error code on your vehicle, you will need one pair of the decoder (not included)to cancel the error.
When you encounter undecoded problems, please do not open disputes or bad reviews, please contact customer service directly, we will solve the problem ASAP.
2.Warm Tips:
Some vehicles such as For Ford, For Chevy, For Dodge,For Jeep .etc they may need this decoder (not included)to solve the flicker/error code problem, you can try the decoders to fix.If you need it, you can buy it locally or contact customer service to get a discount to buy it.