Best Modul 35w 3a Cc 2026

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Last Updated - 27.03.2026

Best Choice

01

Heemol

DC DC Boost Buck Variable Voltage Regulator CC CV 0.5-30V 4A 5V 6V 12V 24V Buck Boost Converter Power Module Adjustable Voltage Regulated Laboratory Power Supply LCD Display

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9.8

Exceptional

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Main highlights

Wide range of applications: the voltage conversion board can be used as an ordinary buck / boost module with overcurrent protection; as a high-power LED constant current driver module; DIY a solar power controller, battery charging
Safe protection: the voltage regulator has a return protection on the input side, so that it does not burn out if there is a return connection. No need to add anti-backflow diode when charging. Multiple software protection mechanisms are available, and the protection threshold is adjustable. When the working parameters of the module exceed the protection threshold, the output is automatically switched off.
LCD displays: step up converter input/output voltage, output current/output power/output capacity/output time. The module can be set to ON/OFF by default.
Good thermal performance: Buck boost converter output ripple is small and π filter is available. Thick heat sink. Buck boost integrated
Data reference: the input voltage range is DC 5-30V; the output voltage range is DC 0.5-30V, can be adjusted arbitrarily; the output current can be 3A for long-term use, when heat dissipation is improved, it can reach 4A; the maximum output power is 35W, when heat dissipation is improved, it can reach 50W

14,99 €
Value for Money

02

Tyenaza

DC-DC Boost Converter, Voltage Regulator 35W 3A CC CV Boost/Buck Step Up/Down Converter DC-DC 5V-30V to 0.5V-30V for Power Supply of Speakers, Audio Amplifiers

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9.5

Excellent

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Main highlights

Red & Blue Light:Red and blue light will light up when constant charging, blue light only lights up at constant voltage, blue and green light on when almost fully charged, green light only when fully charged
Output ripple voltage: 20mV (at 12V 3A output); Input voltage: 5V~30V; Output voltage: 0.5V~30V; Output current: 3A (or 4A if heat dissipation improves); Output power: 35W (or 60W with improved heat dissipation)
Orientation It has a fairly low output ripple voltage, for example 20mV at 12V 3A, which is ideal for powering speakers, audio amplifiers, artificial circuits, etc
Features: This boost/buck module can increase or decrease the voltage and maintain stable output voltage
5V to 30V: input 5V to 30V and it can adjust storage batteries, lithium batteries, AA rechargeable batteries or constant current LED brightness

13,29 €
03

Akozon

Akozon 35W 3A CC CV Boost/Buck Step Up/Down Converter DC-DC 5V-30V to 0.5V-30V Power Converter

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9.3

Excellent

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Main highlights

Protection function: the power buck boost module supports 10A overcurrent protection, input undervoltage protection and high efficiency MOS input anti-reverse protection. Constant current values can be adjusted without multimeter. Scaled single turn potentiometers are easier to use.
LED light indicator: Red and blue light when constant current is charged, blue light only at constant voltage, blue and green light when almost fully charged, green light only when fully charged.
Buck boost function: the boost / buck module can be amplified or switched down to maintain a stable output voltage. It is powerful, highly efficient and stable in performance.
Buck application: the buck function is realized by the step-down circuit structure, and the output ripple voltage is quite low. For example, if the output is 12V 3A, it is 20mV, which is very suitable for powering speakers, audio amplifiers, artificial circuits, etc.
Boost application: input 5 V to 30 V, can be used battery, lithium battery, AA rechargeable battery or can be used. Very low output ripple voltage. Low ESR capacitor + two-stage filtering, suitable for the power supply of audio amplifier boards and analogue circuits.

12,52 €
04

Nimomo

Boost Module Buck Module 35W 3A CC CV Boost Buck Step Converter DC-DC 5V-30V to 0.5V-30V

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9.2

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

This boost/buck module can increase or decrease voltage and maintain stable output voltage
Red and blue light lights up with constant current when charging, blue light only lights up with constant voltage when charging, blue and green light lights up when almost fully charged, green light only lights up when fully charged
It supports input overcurrent protection, input undervoltage protection and MOS input reverse polarity protection
It has a fairly low output ripple voltage, e.g. B. 20mV when the output is 12V 3A, which is great for power supply of speakers, audio amplifiers, artificial circuits, etc
Enter 5V to 30V and it can charge batteries, lithium batteries, rechargeable AA batteries or adjust the constant current LED brightness

9,19 €
05

YUMILI

YUMILI Modul, 35W 3A CC CV Boost/Buck Step Up/Down Converter DC-DC 5V-30V auf 0.5V-30V

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9.1

Excellent

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Main highlights

【Strong Function】Supports over-current protection at the input, low voltage protection at the input and reverse polarity protection at the MOS input.
【Stable Performance】This boost/buck module can increase or lower the voltage and maintain a stable output voltage.
【Note】Red and blue light lights up with constant current when charging, blue light only lights up with constant voltage when charging, blue and green light is on almost full charge, green light only lights up when fully charged.
【Fit for】It has a relatively low output ripple voltage, for example 20mV when the output is 12V 3A, which is ideal for power supply of speakers, audio amplifiers, artificial circuits, etc.
Multifunctional input 5 V to 30 V and it can charge battery, lithium battery, AA battery or adjust the constant current LED brightness.

9,19 €
06

NOENNULL

Module 35W 3A CC CV Boost Step Up Down Converter

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9.0

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

This boost/module can increase or decrease voltage and maintain stable output voltage
The output ripple is relatively low, e.g. B. 20mV when the output is 12V and 3A, which is excellent for powering speakers, audio amplifiers, artificial circuits, etc
Red and blue light light up with constant current when charging, blue light only light up when charging with constant voltage, blue and green light will glow when almost fully charged, green light only light up when fully charged
It supports input overcurrent protection, input undervoltage protection and MOS input reverse protection
Input 5V to 30V and it can charge a storage battery, lithium battery or rechargeable AA battery or adjust the LED brightness with constant current

11,09 €
07

APKLVSR

APKLVSR DC-DC Buck Boost Power Converter Automatic Step Up/Down, Buck Boost Converter Display, 5.5-30V 12V to 0.5-30V 5V 24V, 3A 35W Voltage Converter

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8.9

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

【Safety Protection】: LC filter, low output ripple, input reverse polarity protection, does not burn through, short circuit protection, low voltage protection.
【LCD Display】: The voltage regulator module uses an LCD design and can switch the display of input voltage, output voltage, output current and output power; the resolution of the voltage display is 0.05V, the resolution of the current display is 0.005A.
【DC DC Buck Boost Converter Module】The input voltage range of buck boost converter is DC 5.5-30V; the output voltage range is DC 0.5-30V and can be adjusted arbitrarily; the output current range is 0-3A and can be adjusted arbitrarily, when heat dissipation is improved, it can reach 4A; the maximum output power is 35W. If the power loss increases, it can reach 50 W.
【Button control】: short press IN/OUT to switch input and output voltage, and long to switch output power output. Short press ON/OFF to turn the output on or off, and long press to turn the standard output state on or off.
【Application】: The buck boost converter can be used as an ordinary buck boost module with over-current protection; used as a charger; and used as a high performance LED constant current driver module.

12,59 €
08

FOLOSAFENAR

Power Converter 5V-30V to 0.5V-30V DC-DC Boost Converter Module 35W 3A CC CV Voltage Converter Step-Down/Up for Audio Amplifier

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8.6

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

This boost/module can increase or decrease the voltage and maintain a stable output voltage
Red and blue light lights up when charging with constant current, blue light only lights up when charging with constant voltage, blue and green light lights up when almost fully charged, green light only lights up when fully charged
It supports input over current protection, input undervoltage protection and MOS input reverse polarity protection
It has a fairly low output ripple voltage, e.g. B. 20mV when the output is 12V 3A, which is great for powering speakers, audio amplifiers, artificial circuits, etc
Input 5V to 30V and it can charge batteries, lithium batteries, rechargeable AA batteries or adjust the constant current LED brightness

10,99 €
09

Vikye

Vikye Automatic Voltage Converter, CC CV 35W 3A Boost/Buck Step Up/Down Converter, Professional Converter DC-DC 5V-30V to 0.5V-30V

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8.5

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Stable performance: This boost/buck module can increase or decrease the voltage and maintain a stable output voltage.
Specification and application: it has a fairly low output ripple voltage, e.g. B. 20mV when the output is 12V, 3A. This is ideal for powering speakers, audio amplifiers, artificial circuits, etc.
Protection function: supports overcurrent protection at the input, undervoltage protection at the input and the reverse protection on the MOS input.
Note: Red and blue light lights up with constant current when charging, blue light only lights up when charging with constant voltage, blue and green light lights up when it is almost fully charged, green light only lights up when fully charged.
Easy to use: Input 5 V to 30 V and charge storage batteries, lithium batteries, AA batteries or the LED brightness at constant current.

6,08 €
10

Elprico

Elprico Multifunctional Power Converter, 35W 3A CC CV Boost Step Up/Down Converter DC-DC 5V-30V to 0.5V-30V, Professional Power Converter for Circuits

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8.4

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Stable performance: This boost module can increase or decrease the voltage and maintain a stable output voltage.
Specification and application: it has a fairly low output ripple voltage, e.g. B. 20mV when the output is 12V, 3A. This is ideal for powering speakers, audio amplifiers, artificial circuits, etc.
Protection function: supports overcurrent protection at the input, undervoltage protection at the input and the reverse protection on the MOS input.
Note: Red and blue light lights up with constant current when charging, blue light only lights up when charging with constant voltage, blue and green light lights up when it is almost fully charged, green light only lights up when fully charged.
Easy to use: Input 5 V to 30 V and charge storage batteries, lithium batteries, AA batteries or the LED brightness at constant current.

12,76 €