





The voltage reducer adopts an imported switching power supply voltage stabilizing module to stabilize the input DC voltage (13-40V) and output a direct current of 12V, and it also realizes automatic protection functions against overcurrent, overvoltage, overheating and short circuit. It has a good heat dissipation effect. Please use it with confidence. The product is safe, convenient and reliable to use.
To use the 12V car audio equipment on a diesel vehicle, power conversion must be carried out.
It is suitable for use in diesel vehicle audio modification and other applications. Assembled with imported modules, it is safe and reliable.
Because we do it professionally, we perform even better.
Voltage reducer Instruction manual
Product Name: 24V to 12V
Model 2:10A
3 Introduction
This product adopts an imported power supply voltage stabilizing module, which stabilizes the input DC voltage (13-40V) and outputs 12V DC, and realizes automatic protection against overcurrent, overvoltage, overheating and short circuit.
4 Main performance parameters:
Input DC voltage: DC13-40
Output DC voltage: DC12±1V
Maximum output current: 20A
Maximum operating temperature: 85℃
Rated output current: 10A
Rated output power: 360W
Static operating current: <; 60mA
Instruction Manual
Product Name: Power Converter
Model 2:20A
3 Introduction
This product adopts an imported power supply voltage stabilizing module, which stabilizes the input DC voltage (13-40V) and outputs 12V DC, and realizes automatic protection against overcurrent, overvoltage, overheating and short circuit.
4 Main performance parameters:
Input DC voltage: DC13-40
Output DC voltage: DC12±1V
Maximum output current: 45A
Maximum operating temperature: 85℃
Rated output current: 20A
Rated output power: 360W
Static operating current: <; 60mA
Instruction Manual
Product Name: Power Supply 220 to 12V
Model 2:80A
3 Introduction
This product adopts an imported power supply voltage stabilizing module, which stabilizes the input DC voltage (13-40V) and outputs 12V DC, and realizes automatic protection against overcurrent, overvoltage, overheating and short circuit.
4 Main performance parameters:
Input DC voltage: DC13-40
Output DC voltage: DC12±1V
Maximum output current: 130A
Maximum operating temperature: 85℃
Rated output current: 80A
Rated output power: 360W
Static operating current: <; 60mA
Instruction Manual
Product Name: Power Converter
Model 2:30A
3 Introduction
This product adopts an imported power supply voltage stabilizing module, which stabilizes the input DC voltage (13-40V) and outputs 12V DC, and realizes automatic protection against overcurrent, overvoltage, overheating and short circuit.
4 Main performance parameters:
Input DC voltage: DC13-40
Output DC voltage: DC12±1V
Maximum output current: 32A
Maximum operating temperature: 85℃
Rated output current: 30A
Rated output power: 360W
Static operating current: <; 60mA





24 v to 12 v car power step-down converter
Car power converter to choose knowledge:
A: car power converter:
Is the dc-dc converter, car power converter (DC/DC) converter is widely used in remote and data communication, computer, office automation equipment, industrial instrumentation, military, aerospace and other fields, involving the from all walks of life of the national economy.
According to the size of the rated power, DC/DC converter can be divided into 1. 6 w to 250 w, 250 w ~ 750 w, 750 w ~ 1 kw, 3 kinds big. Into the 1990 s, a DC/DC converter in low power within the scope of the growth rate increased significantly, among them 6 w - 250 WDC/DC converter has the highest growth rate, this is because they used for DC measurement and test equipment, computer display system, computer and military communications systems. Due to the high speed of the microprocessor, a DC/DC converter from the low power to the direction of development is the inevitable trend of power, so the 250 w ~ 750 w DC/DC converter's growth is faster, this is it for the service of medical and laboratory equipment, industrial control equipment, telecommunications equipment, multiplex communication and sending equipment, DC/DC converter in remote and digital communication field has a broad application prospect.
Car power converter is used in large truck, bus, converted to dc 12 v, 24 v dc for car audio, subwoofer, navigation, vehicle traveling data recorder and other automotive electrical power supply.
Products adopt advanced PWM chip technology, the power conversion work in audio frequency range, while greatly reduce the volume and weight of the machine, make the circuit work in the absence of noise. This product design with multiple protection circuit, 1. 2 short circuit protection overload protection 3. Direct protection 4. Power of memory. In use, can effectively protect electrical appliances and automotive circuit when the output current more than the rated output, can quickly cut off the output circuit, and earnestly protect the safety of electrical equipment.
2: the installation method of use:
1, place the step-down transformer in ventilation, dry environment, and make appropriate fixed.
2, will be 24 v input connected to the power connectors,. Red line to the anode, yellow line by car key switch line (ignition switch line), the black line connect the cathode.
3, use 12 v output with the 12 v electrical connection. Red line connect the anode. Yellow line ACC (REM) line of electric equipment. Black line connect the cathode.
* with electric appliance's long-term working current should be less than the rated current of step-down transformer. Please get insulation treatment after wiring, in order to prevent the short-circuit phenomenon.
4, turn on the power of the car to power a step-down transformer, step-down transformer indicator.
5, turn on the power of the electric switch, can work normally.
3: products use notice:
1, please don't more than rated current use for a long time, lest cause failure.
2, when the car engine shut down, please do not use this product for a long period of time in order to avoid because of the battery voltage is too low is inconvenience to start the car.
3, please strictly abide by the matters needing attention with the electrical use of this product.
4, and cannot be used in high temperature, damp and dusty place this product.
5, please don't decomposition, innovation to our products.
Four: how to choose a suitable for your car power converter:
1: if your car stereo is a 12 v MP3 machine, can choose 10 a 24 12 v step-down transformer.
2: if your car stereo is one of the 12 v CD or DVD host, you can choose to turn 15 ~ 20 a 24 a 12 v step-down transformer.
3: if your car stereo is one of the 12 v CD or DVD host, plus a subwoofer, suggestion choice 30 a 24 12 v step-down transformer.
4: if your car stereo is one of the 12 v CD or DVD host, plus a subwoofer, coupled with the electric equipment such as navigation screen recommendation choose 30 a 24 12 v
24V to 12V vehicle power step-down converter
Knowledge about selecting a vehicle-mounted power converter
I. Description of the Vehicle-mounted Power converter
The on-board power converter is a DC-DC converter. (DC/DC) converters are widely used in remote and data communication, computers, office automation equipment, industrial instruments and meters, military, aerospace and other fields, and are involved in all walks of life of the national economy.
According to the size of the rated power, DC/DC converters can be classified into 1. There are three major categories: 6W to 250W, 250W to 750W, and 750W to 1KW. Entering the 1990s, the growth rate of DC/DC converters in the low-power range increased significantly, among which the growth rate of 6W to 250WDC/DC converters was the highest. This was because they were widely used in DC measurement and test equipment, computer display systems, computers and military communication systems. Due to the high-speed development of microprocessors, it is an inevitable trend for DC/DC converters to evolve from low power to medium power. Therefore, the growth rate of DC/DC converters ranging from 250W to 750W is also relatively fast. This is mainly because they are used in service-oriented medical and experimental equipment, industrial control equipment, remote communication equipment, multi-channel communication and transmission equipment. DC/DC converters have broad application prospects in the fields of remote and digital communication.
The vehicle-mounted power converter is applied in large trucks and buses, converting 24V DC to 12V DC to supply power to automotive electrical appliances such as car audio systems, subwoofers, navigation systems, and dash cams.
The product is developed with advanced PWM chip technology. The power conversion operates within the ultra-high frequency range, significantly reducing the volume and weight of the entire machine while ensuring that the circuit operates in a noise-free state. This product is designed with multiple protection circuits: 1. Short-circuit protection 2. Overload protection 3. Straight-through protection 4. Power-off memory. It can effectively protect electrical appliances and automotive circuits during use. When the output current exceeds the rated output, it can quickly cut off the output circuit, truly ensuring the safety of electrical equipment.
Ii: Installation and Usage Method
Place the pressure reducer in a well-ventilated and dry environment and secure it properly.
2. Connect the 24V input terminal to the power supply connector. Connect the red wire to the positive terminal, the yellow wire to the car key switch wire (ignition switch wire), and the black wire to the negative terminal.
3. Connect the 12V output to 12V electrical appliances. Connect the red wire to the positive terminal. The yellow wire is connected to the ACC (REM) wire of the electrical appliance. Connect the black wire to the negative terminal.
The long-term operating current of the electrical appliance should be less than the rated current of the voltage reducer. After wiring, please do insulation treatment to prevent short circuits.
4. Turn on the power in the vehicle to supply power to the voltage reducer, and the indicator light of the voltage reducer will light up.
5. Turn on the power switch of the electrical appliance and it will work normally.
Three: Precautions for Product Use
Please do not use it for a long time beyond the rated current to avoid causing malfunctions.
When the car engine is turned off, please do not use this product for a long time to avoid the car being difficult to start due to the low battery voltage.
3. Please strictly follow the precautions of the electrical appliance when using this product.
4. Do not use this product in high-temperature, humid or dusty places.
5. Please do not disassemble or modify this product.
Four: How to Choose a Car Power Converter That Suits You
If your car audio system is a 12V MP3 player, you can choose a 10A 24-to-12V voltage reducer.
If your car audio system is a 12V CD or DVD player, you can choose a 15A to 20A 24-to-12V voltage reducer.
If your car audio system is a 12V CD or DVD player and you add a subwoofer, it is recommended to choose a 30A 24-to-12V voltage reducer.
4: If your car audio system is a 12V CD or DVD player, along with a subwoofer and electrical appliances such as a navigation screen, it is recommended to choose a 30A 24-to-12V voltage reducer.
If you still don't understand, please contact our online customer service.

















