Best 40 volt power supply Reviews

Buying the right 40 volt power supply is not such an easy task with the huge amount of 40 volt power supply available that are competing for your wallet – we tried to make this task easier for you by selecting out top 10 (And extended top 30) of the best 40 volt power supply money can buy.

All our picks for the best 40 volt power supply you will find below are from the Amazon.com marketplace – we love shopping there and find it easy to compare the best 40 volt power supply since it so easy to get a great input from actual customers of the product.

 40 volt power supply Best extended Pick

SaleBestseller No. 1
Icstation DC to DC Voltage Regulator Dual USB Charger 6-40V to 5V 3A Step Down Power Supply Buck Converter DC 5.5X2.1mm Port
3 Reviews
Icstation DC to DC Voltage Regulator Dual USB Charger 6-40V to 5V 3A Step Down Power Supply Buck Converter DC 5.5X2.1mm Port
  • LM2596 DC-DC step down voltage converter module with fixed voltage output
  • On-board screw terminals and DC 5.5X2.1mm dual power input jack with 6-40V voltage input
  • Dual USB power output port with 5V fixed voltage output and maximum 3A current output
  • Large current output with high conversion efficiency up to 92% used as a DIY USB quick charger for your smart phones tablet or as a 9V/12V/24V/36V to 5V power converter module
  • Fulfilled by Amazon will take 2-4 days delivery time and shipped by Icstation will take 7-17 days delivery time usually
SaleBestseller No. 2
eBoot 6 Pack LM2596 DC to DC Buck Converter 3.0-40V to 1.5-35V Power Supply Step Down Module
95 Reviews
eBoot 6 Pack LM2596 DC to DC Buck Converter 3.0-40V to 1.5-35V Power Supply Step Down Module
  • Input: DC 3 V to 40 V (input voltage must be 1.5 V higher than the output voltage, no boost)
  • Output: DC 1.5 V to 35 V voltage is continuously adjustable, maximum output current is 3 A
  • Features: all use SANYO solid-state capacitors, 36 u thickening circuit boards, high-Q inductance with LED indicator output
  • Quantity: 6 pieces; Size: 45 * 20 * 14 mm (with potentiometer)
  • Steps: connect to power source, adjust the swirl button on the blue potentiometer and monitor voltage with multimeter to get the needed voltage (The factory have tested these at max voltage so they are very high by default, takes about 15-20 turns CCW before the voltage starts ramping down)
SaleBestseller No. 3
DROK DC Car Power Supply Voltage Regulator Buck Converter 8A/100W 12A Max DC 5-40V to 1.2-36V Step Down Volt Convert Module
159 Reviews
DROK DC Car Power Supply Voltage Regulator Buck Converter 8A/100W 12A Max DC 5-40V to 1.2-36V Step Down Volt Convert Module
  • Super dense and reinforced aluminum radiator allows lower and more Stable operating temperature
  • There is LED indicator in the module, making the operating status of this board Clear
  • It has the TVs Diode to prevent Voltage Surge from breaking the chip D, hence allowing safer module operation
  • Four screw holes in the board enable you to mount the module more conveniently and easier
  • V-twin for input and v-out for output; installation of four 3 mm screws
Bestseller No. 4
EPBOWPT DC 12V 24V to DC 5V 10A 50W Converter Regulator Step Down Module Transformer power Supply
  • Convert unstable 8V-40V DC power supply into stable 5V 10A DC power output
  • Over-voltage, over-current, over-temperature, short-circuit auto protection, and can return to normal conditions in the work
  • Essential for car audio system or other 5V car products (particularly useful in vehicles with 24V power supply)
  • Input voltage: 12/24V (8V-40V),Output: 5V/10A
  • Widely used in automotive, surveillance systems, railway signals, medical equipment, instruments and meters, LED products, LED strips, cable TV and other low power test systems
SaleBestseller No. 5
DC 24v to 12v Step Down Converter Reducer Regulator 5A 60W Power Supply Adapter for Auto Car Truck Vehicle Boat Solar System etc.(Accept DC15-40V Inputs)
7 Reviews
DC 24v to 12v Step Down Converter Reducer Regulator 5A 60W Power Supply Adapter for Auto Car Truck Vehicle Boat Solar System etc.(Accept DC15-40V Inputs)
  • DC 24V to DC 12V Step Down Converter. (15-40V Wide Range Input) Max Current 5A 60W.
  • Waterproof alloy housing makes the converter ideal for use in a wide range of applications including vehicles, security systems, hospital equipment, telecommunications etc
  • Built-in over-voltage, under-voltage, overload, over-heat and short circuit protection
  • The length of the line is about 12CM, slim, small volume, easy installation.
  • High quality and performance. 3 Year Warranty.
Bestseller No. 6
BronaGrand 2pcs LM2596 DC to DC Buck Converter Step Down Module Power Supply 3.0-40V to 1.5-35V
  • Input: DC 3 V to 40 V (input voltage must be 1.5 V higher than the output voltage, no boost).
  • Output: DC 1.5 V to 35 V voltage is continuously adjustable, maximum output current is 3 A.
  • Features: all use SANYO solid-state capacitors, 36 u thickening circuit boards, high-Q inductance with LED indicator output
  • Size: 45 * 20 * 14 mm (with potentiometer)
  • Include of Package:2 x DC to DC Buck Converter Step Down Module.
Bestseller No. 7
DROK 8A Step Down Voltage Regulator Numerical Control DC 6-40V to 0-38V NC Digital Adjustable Converter Stabilized Power Supply
50 Reviews
DROK 8A Step Down Voltage Regulator Numerical Control DC 6-40V to 0-38V NC Digital Adjustable Converter Stabilized Power Supply
  • 6-40V to 0-38v DC step-down constant Voltage adjustable NC converter with LED Voltmeter
  • It's recommended working in 4A or less without fan to enhance heat dissipation, it can work long term in 8A please don't Lead to short circuit
  • You can control output Voltage by setting the "on/off" button and the "in" and "out" on can switch the display of input Voltage and output Voltage
  • Using the "set" button can setting the output Voltage, press the "+" "-" button to increase/decrease the value
  • It has integrated input mos reverse polarity protection circuit, so it will NOT damaged if wiring reversed
Bestseller No. 8
DROK DC-DC 5-40V to 3.3V 5V 12V ADJ Adjustable Step Down Voltage Regulator, LM2596 4-way Multiple Output Switching Power Supply Module Board, 5A Buck Volt Converter Transformer Stabilizer
31 Reviews
DROK DC-DC 5-40V to 3.3V 5V 12V ADJ Adjustable Step Down Voltage Regulator, LM2596 4-way Multiple Output Switching Power Supply Module Board, 5A Buck Volt Converter Transformer Stabilizer
  • 4-WAY MULTIPLE OUTPUT: DROK step down voltage converter owns 4 various volt output terminals (3.3V, 5V, 12V, ADJ) and this converter can tolerate wide input range(DC 5-40V), which can fulfill different application.
  • LM2596 GOOD-PERFORMANCE CHIP: This voltage stabilizer is equipped with 4 high quality and good performance LM2596 chips, which can provide stable and accurate output.
  • OVER-CURRENT PROTECTION: This buck converter has a over-current production fuse, effectively protect the module from damaging by over-current.
  • WARM TIPS: The ADJ output of this regulated power supply module should be 2V lower than the input voltage. The max. output current of a single way is 3A and the max. output current of all ways should be less than 5A.
Bestseller No. 9
Yeeco LM2596 DC 5V-40V Multi-output Switching Buck Converter Step Down Power Supply Module DC 5V-40V to 3.3V/ 5V/ 12V/ ADJ Adjustable Voltage Output Voltage Regulator
10 Reviews
Yeeco LM2596 DC 5V-40V Multi-output Switching Buck Converter Step Down Power Supply Module DC 5V-40V to 3.3V/ 5V/ 12V/ ADJ Adjustable Voltage Output Voltage Regulator
  • Input Voltage: DC 5V-40V;Output Voltage: DC 3.3V/ 5V/ 12V/ADJ adjustable voltage output
  • Strict layout, the wiring in strict accordance with the power circuit
  • With 4 power output: 3.3V / 5V / 12V / ADJ adjustable output, small ripple, suitable for student competition module and personal project development
  • The ADJ output voltage of the module is generally lower than the supply voltage 1V; Module single current maximum is 3A, the total current does not exceed 5A
  • With window design, which is conducive to heat dissipation; With anti-reverse protection, can safety to use
Bestseller No. 10
DROK Wireless Bluetooth Voltage Regulator Computer Remote Monitor Control Buck Converter DC 6-55V to 0-50V 5A Step Down Stabilized Switching Power Supply Module USB Communication Volt Transformer
4 Reviews
DROK Wireless Bluetooth Voltage Regulator Computer Remote Monitor Control Buck Converter DC 6-55V to 0-50V 5A Step Down Stabilized Switching Power Supply Module USB Communication Volt Transformer
  • DROK buck voltage converter input voltage range DC 6-55V, output voltage range 0-50V, output current range 0-5A, output power range 0-250W, output voltage resolution 0.01V, output current resolution: 0.001A.
  • Wireless & Wire Connection: it can connect with computer by Bluetooth, in the distance range of 5 meters; or can connect by the USB communication board. User can remote monitor, voltage setting and current setting can be operated quickly.
  • Quick Operation: it is easy to operate converter with this, you can do voltage setting and current setting as quickly as possible; you can also set it to cut off output when over voltage, over current and over power.
  • LCD Display: Built with color LCD display, it will be convenient for you to review preset voltage, input voltage, output voltage, preset current, output current, output power and brightness of LCD.
  • Package Including: 1x DC adjustable constant voltage power supply converter; 1x USB communication board; 1x bluetooth communication board; 1x cable.
Bestseller No. 11
BINZET DC 12V 24V to 5V 5A Converter Step Down Regulator 25W 5V Regulated Power Supplies Transformer Converter
73 Reviews
BINZET DC 12V 24V to 5V 5A Converter Step Down Regulator 25W 5V Regulated Power Supplies Transformer Converter
  • Convert unstable 8V-40V DC power supply into stable 5V 5A DC power output
  • Over-voltage, over current, over temperature, short circuit auto protection, and can return to normal conditions in the work
  • Essential for car audio system or other 5V car products (particularly useful in vehicles with 24V power supply)
  • Input voltage: 12/24V (8V-40V),Output: 5V/3A
  • This Voltage regulator widely used in automotive, surveillance systems, railway signals, medical equipment, instruments and meters, LED products, LED strips, cable TV and other low power test systems
Bestseller No. 12
SMAKN® DC-DC BUCK Step down Converter Power Supply Voltage Volt Regulator Regulated 4.5-40V 12V To 5V 2A USB Charger Voltmeter Display
1 Reviews
SMAKN® DC-DC BUCK Step down Converter Power Supply Voltage Volt Regulator Regulated 4.5-40V 12V To 5V 2A USB Charger Voltmeter Display
  • Wide range of voltage meter: DC4.5V-40V.
  • Output current capability 5V/2A (input voltage to a regulated output voltage of 5.0V when the 6.5V-40V).
  • Net Weight: 13g
  • Main Color: Silver Tone, Black
  • Size:58mm*21mm*10mm(L*W*H)
Bestseller No. 13
DZS Elec 2PCS LM2596 DC-DC Step Down Variable Volt Regulator Input 3.2V-40V Output 1.25V-35V Adjustable Buck Converter Electronic Voltage Stabilizer Power Supply Module
1 Reviews
DZS Elec 2PCS LM2596 DC-DC Step Down Variable Volt Regulator Input 3.2V-40V Output 1.25V-35V Adjustable Buck Converter Electronic Voltage Stabilizer Power Supply Module
  • The Module Properties: Non-isolated Constant Current and Voltage Of The Module
  • Rectification:Non-Synchronous Rectification
  • Input Voltage: 3.2V-41V
  • The Output Voltage: 1.25V-35V
  • The Output Current: Rated Current 2A, Maximum 3A (Additional Heat Sink Is Required)
Bestseller No. 14
Elenco XP-625  AC/DC Power Supply
8 Reviews
Elenco XP-625 AC/DC Power Supply
  • Ideal AC/DC power supply for your school lab
  • It has a DC output (UN-regulated, UN-filtered) from 0-30 volts at up to 5 amps
  • It has an AC output (UN-regulated, UN-filtered) of 0-40V at up to 5 amps
  • Intended for applications where high voltage variance and fluctuations can be tolerated
  • Meter displays the average voltage -peak voltages are higher
Bestseller No. 15
BINZET DC 12V 24V to 5V 10A 50W Converter Step Down Regulator 5V Regulated Power Supplies Transformer Converter
71 Reviews
BINZET DC 12V 24V to 5V 10A 50W Converter Step Down Regulator 5V Regulated Power Supplies Transformer Converter
  • Convert unstable 8V-40V DC power supply into stable 5V 10A DC power output
  • Over-voltage, over current, over temperature, short circuit auto protection, and can return to normal conditions in the work
  • Essential for car audio system or other 5V car products (particularly useful in vehicles with 24V power supply)
  • Input voltage: 12/24V (8V-40V),Output: 5V/3A
  • This Voltage regulator widely used in automotive, surveillance systems, railway signals, medical equipment, instruments and meters, LED products, LED strips, cable TV and other low power test systems
SaleBestseller No. 16
Cewaal DC-DC Adjustable Buck Step-Down Converter Power Supply Module 40V 5A 75W Voltmeter Display
  • High conversion efficiency, up to 96%
  • With overheat protection and short circuit protection.With power indicator light.
  • Measure range: 0~40V ( please ensure that the input voltage is 4.5V or more), voltmeter error ±0.05V.
  • Output power: up to 75W, more than 50W, Please enhance heat dissipation
  • Output current: max 5A, recommended for use in the 4.5A.Output power: up to 75W.
Bestseller No. 17
JahyShow® US Power 36V to 12V 10A 120W Golf Cart Voltage Reducer Converter Waterproof
17 Reviews
JahyShow® US Power 36V to 12V 10A 120W Golf Cart Voltage Reducer Converter Waterproof
  • DC/DC Voltage Reducer Step Down Power Converter 36V to 12V, 10A, 120W, Made of first class aluminum
  • waterproof housing makes the converter ideal for use in a wide range of applications including vehicles, security systems, hospital equipment, telecommunications etc, and Commonly used for radio, speaker system, club car, electric bike, solar panel, led lights an so on,Wide application: Used on golf cart,club car,motor, speaker, GPS, LED car display screen, air-conditioner, electric fan, solar energy, DVD, industrial equipment and other 12V devices
  • Over 90% power conversion efficiency,With the protection of input momentary high voltage,output over current and short circuit,over heat.Protections: Over-load, Over-current, Over-temperature, Short-circuit, Over-voltage.Built-in over-voltage, under-voltage, overload, over-heat and short circuit protection
  • Die-cast aluminum shell, anti-shock, and moisture-proof and has stronger durability. 100% waterproof (IP67) and shockproof, damp-proof and anti-dust, 90% of High Transfer Efficiency and stable performance
  • Epoxy potting, seismic, water, moisture, dust, long term stable and reliable quality, small size, high efficiency, Easy Installation: There are 4 wires, Red wire is for the input +, Black wire is for the input - ; Yellow wire is for the output +, Black wire is for the output - Compact and Solid Design,Wiring diagram labeled on the back, easy to wire up, no humming or shutdown during using
Bestseller No. 18
SMAKN® DC/DC Converter 12V/24V/36V 11-40V Step Down to 7.5V/30A 7.5V 30A 225W Power Supply Module
  • All epoxy sealed containers with Waterproof Housing; Non-isolated
  • High efficiency: >96%; Reliable, low heat dissipation max. 40 ℃;
  • With overload / over-current / over / low voltage protection, stable performance.
  • Light compact, convenient to use and transport; Auto recovery
  • Widely used in Car device, such as LED Display, Hard Disk Player, MP3, DVD, GPS, etc
Bestseller No. 19
KNACRO AC/DC TO DC Converter AC 16-28V / DC 16-40V Step Down to 12V/5A Power Supply Module AC/DC TO DC Converter AC 16-28V/DC 16-40V Step Down to 12V/5A 12V 5A MAX 60W Power Supply Module
  • Input Voltage is AC 15-26v or DC 15-40v ( input regardless of positive and negative ) and output is 12V
  • Its output current is 5A max, the total power is 60 Watt
  • Equipped with protection function, short circuit protect, over current protect, over load protect and it has a long service life
  • It is commonly used for ccd camera, CCTV system, gateway and other electronics with 12V
  • It has a good conversion efficiency of 96 percent and its working temperature is -20-60 Celsius degree
Bestseller No. 20
BINZET DC Converter Step Down Regulator 5V Regulated Power Supplies Transformer Converter (5V 3A 15W)
92 Reviews
BINZET DC Converter Step Down Regulator 5V Regulated Power Supplies Transformer Converter (5V 3A 15W)
  • Convert unstable 8V-40V DC power supply into stable 5V 3A DC power output
  • Over-voltage, over current, over temperature, short circuit auto protection, and can return to normal conditions in the work
  • Essential for car audio system or other 5V car products (particularly useful in vehicles with 24V power supply)
  • Input voltage: 12/24V (8V-40V),Output: 5V/3A
  • This Voltage regulator widely used in automotive, surveillance systems, railway signals, medical equipment, instruments and meters, LED products, LED strips, cable TV and other low power test systems

Last update on 2018-03-22 / Affiliate links / Images from Amazon Product Advertising API - More info

 

How did you make this 40 volt power supply best list?

we looked into many different factors when listing our top 40 volt power supply. one crucial factor was comparing the price to value aspect. how much exactly we are getting for our money when buying this specific 40 volt power supply. that was a big one. we also looked into various other factors, such as review score, features, and comparing all the 40 volt power supply with each other.

What is the refund policy when buying a 40 volt power supply?

Amazon have a great refund policy if there anything wrong with your new 40 volt power supply buy in any case we suggest you read carefully the guaranty offered by each specific merchant and make a smart buying decision. as a general rule you can buy with confidence at the Amazon market place.

Is it a wise idea buying 40 volt power supply online?

Personally I do most of my shopping online and buying 40 volt power supply is no difference to me. it’s so easy seeing all the different reviews, comparing different products and making a wise buying decision.

What is the most important thing to look for when buying 40 volt power supply?

It’s highly important that you look at the quality of material when buying 40 volt power supply. You want something that will last you for several years to come. so look carefully in other buyers reviews and make the best decision on your new 40 volt power supply

 

 

How much am I suppose to spend on new 40 volt power supply?

Remember that buying a good 40 volt power supply is a one time purchase (hopefully) and in addition it is something that you use on a daily basis. you don’t want to save $5 on an item like this – so always go for the best 40 volt power supply you can afford to buy.

 

is there a life time warranty when buying 40 volt power supply?

There are many different kinds of warranty . some of them come with a life time warranty, some have 2 years warranty or 5 years. and some have no warranty at all. we recommend going for bare minimum of 5 years warranty on your 40 volt power supply – that’s enough time to get value out of your new 40 volt power supply.