What are CAN bus compatible Error Free LED bulbs?

Automotive led bulbs can be devided into CANBus bulbs and not CANBus bulbs.
CANBus bulbs will have a internally or externally resistors on the bulbs and increase the power of the bulbs so that it can pass the inspect of vehicle’s CANBus system. Normally you can see there is black resistor on a bulbs, or with the aluminum on the bulbs, that is CANBus compatible Error Free LED bulbs. For non CANbus bulbs, it will be the SMD chips and its socket only. There are nothing else, a every simple bulbs. Besides, CANBus bulbs are heavier than the non-CANBus bulbs because the Aluminum on it to help heat conductive.

Why do we need can bus compatible led bulbs


European vehicles are the typical candidates for these types of LED bulbs as the electrical system on these European cars have sensors that detect whether the light is working or not. Since LED bulbs draw far less power than the original halogen bulbs, the vehicle’s computer may think that the bulb is broken so it'll throw an "error message" or "bulb out" warning the driver that the light is out; thus the name "error free". The resistor’s job is to mimic the power draw of the stock incandescent bulbs to trick the computer to think that the bulbs are drawing the same rate of power so the vehicle does not throw any error messages. 

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