Resistor type decoder：
Principle: By connecting resistors in series or parallel in the circuit, the resistance value of the circuit is changed, so that the current and voltage of the car lamp circuit reach the normal range recognizable by the car computer system, avoiding faults and alarms caused by changes in parameters such as the power of modified car lamps.
Effect: It can effectively solve the problem of faulty lights being on in some vehicle models due to mismatched power of modified car lamps. The cost is relatively low, and the installation is relatively simple. However, it will generate heat, and there may be safety hazards if used for a long time, and it may also consume a certain amount of electrical energy, reducing the brightness of the car lamps.
Capacitive decoder:
Principle: By taking advantage of the charging and discharging characteristics of capacitors, it plays a role in stabilizing voltage and compensating current in the circuit, ensuring the stability of voltage and current during the operation of the vehicle lights, and meeting the requirements of the vehicle’s electrical system.
Effect: It can better stabilize the working voltage of the vehicle lights, reduce the impact of voltage fluctuations on the vehicle lights, improve the stability and service life of the vehicle lights, and has a good effect in solving the flicker problem. However, it is relatively large in size, and may be inconvenient to install when the installation space is limited. Moreover, its ability to regulate current is relatively limited.
Chip-type decoder :
Principle: Equipped with an intelligent chip, it can precisely monitor and regulate various parameters of the vehicle lamp circuit. The chip can automatically adjust the working mode, current, voltage, etc. of the vehicle lamp according to the signals of the vehicle’s electrical system, achieving a perfect match with the vehicle system.
· Effect: Strong decoding ability, capable of meeting the decoding requirements of various vehicle models and different types of vehicle lamps. It can precisely control the working state of the vehicle lamp, avoiding problems such as faulty lights and flashing, and also has functions such as overcurrent, overvoltage, and overheat protection, with high safety. However, the price is relatively high, and the installation technology requirements are also relatively high.
Programmable decoder:
Principle: It has an editable program. Users can customize the parameters of the decoder through professional equipment or software according to the specific vehicle model and light modification situation, such as adjusting current and voltage thresholds, setting decoding protocols, etc.
·Effect: It has extremely strong flexibility and adaptability. It can be personalized for various complex modification situations and special vehicle models, effectively solving some problems that conventional decoders cannot handle. However, it is difficult to use and requires professional knowledge and equipment for programming settings, and the price is also relatively high.