Can this take 20vdc 5amp to output 120vac 0.5amp? The output needed is 40w continuously. Would that work?

Based only on the specs yes this board should be capable of this, I have never drawn continuously that much power from it. But keep in mind too that this is not a 60 hz sine output either. This is a noisey approx. 20 khz square wave that many circuits do not work well with.

Is the output electrically isolated from the input?

The input voltage terminals are insulated from surrounding environments on the board. If not, it would short out. I own one of these boards and I use it to power a 20 watt 110volt ac led bulb. Your not going to operate much with these units, but they work as described.

How do i get power on the a/c side. i have 12vdc going in, but when i touch my multi-meter leads to the contacts(v0-v2) i get no a/c power.

You will get AC voltage once you apply a load to the output. Just not in the traditional sense. Inverters are a little weird when it comes to that....One of the reasons, as previously stated in another users comment, is that the frequency is much higher....which is technically true but not in the sense that compares to the 60hz you get from a wall outlet in your house. These inverters (all inverters do this) create an artificial sine wave using PWM (Pulse Width Modulation). What they are really doing to turning the transistors on and off incredible fast (~10-20 kHz), and are chopping the DC voltage up into smaller chunks. Think of this like a Riemann Sum for my math nerds out there. So the transistor is switching at a rate of 10-20kHz but thats because is creating an artificial sine wave that is oscillating at 60Hz just like your wall outlet. Because of this, it can screw up your multimeter readings because the multimeter gets confused by the high frequency switching if it's a lower quality inverter. Nevertheless, this will power your 120VAC components because the carrier frequency of the transistor is so high (10-20kHz) that the load doesn't even see it....depending on what your load is....All it sees is the artificial 120V AC sine wave oscillating at 60Hz. If you want to get a better understanding, hook up an oscilloscope to the output and you'll see the PWM in action

High Voltage Boost Converter DC-AC 12V to 110V 220V 175V AC 150W Inverter Boost Board Transformer

Product ID: 103027385

Details

Brand
Actmei
Model Name
High Voltage
Power Source
DC Powered
Recommended Uses For Product
Workshop
Wattage
150 watts

⚡150W peak power output

📏Compact 2.3x2.3 inch PCB size

🔄DC 12V to AC up to 220V conversion

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Description

⚡ Boost Your Power Game — Compact, Reliable, Ready to Energize!

SEAMLESS VOLTAGE BOOSTING - Transforms 12V DC input into versatile AC outputs up to 220V, ideal for night markets and mobile setups.
COMPACT YET DURABLE DESIGN - Military-grade PCB ensures long-lasting performance in a sleek 2.3" square footprint.
HIGH FREQUENCY SQUARE WAVE OUTPUT - Stable 20KHz frequency supports LED lights, phone chargers, and low-load devices efficiently.
PROACTIVE USAGE TIPS FOR LONGEVITY - Supports continuous loads with recommended heat sinking; avoid overloads to maximize lifespan.
POWER YOUR DIY PROJECTS WITH PRECISION - Reliable 150W output perfect for small electronics and emergency power needs.

This High Voltage Boost Converter is a compact, military-grade PCB inverter board that converts 12V DC input into selectable AC outputs ranging from 110V to 220V at 150W power. Designed for DIY electronics, emergency power, and mobile applications, it delivers a high-frequency 20KHz square wave output optimized for low-load devices. Its durable build and versatile voltage options make it a must-have for professionals seeking reliable, portable power solutions.

Specifications

ASIN	B07MMMNCQL
Antenna Location	Workshop
Best Sellers Rank	#785,383 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #3,619 in Power Converters
Brand	Actmei
Built-In Media	1 x 150W Inverter Boost Circuit Board
Color	Yellow
Customer Reviews	3.4 3.4 out of 5 stars (69)
Electrical Output Waveform	Square Wave
Frequency	20 KHz
Input Voltage	220 Volts
Inverter Capacity Volt-Amp	150
Item Dimensions L x W x H	2.3"L x 2.3"W x 1"H
Item Weight	2.72 Ounces
Manufacturer	Actmei
Mfr Part Number	GZF027
Model Name	High Voltage Boost Converter
Model Number	784237061163
Output Power	150 Watts
Output Voltage	220 Volts
Peak Output Power Watts	150
Power Source	DC Powered
Standby Power Shutoff	97.22%
UPC	784237061163
Voltage	12 Volts (DC)
Wattage	150 watts

Reviews

A**R

Works as expected

I hooked it up to a 50 Watt solar panel that was producing 20 volts. I had difficulty with other converters because they would sound an alarm when the voltage went over 15 volts. This device worked. I tested the output with a volt meter and it read 117 volts ac, 168 volts and 210 volts depending in where I hooked up the meter. I haven't hooked it up to any devices yet.

23.04.2019

C**E

No output terminals as shown in the picture

Unless you are willing to modify the module, this is essentially unusable as a "drop in" for a project that requires terminal post connections. I did not test to see if it even meets the specifications they claim as I am already skeptical of anything from this company

6.08.2023

J**N

Works great

Load testing gave 170ma into 350v, perfect for my tube tester. Those who are reporting no VAC out probably have meters than wont read a 20khz ac signal. The output is 20khz not 60hz. Cheap dvms will not read above 1khz usually.

27.01.2021

W**L

Misleading product picture

The product is not exactly as shown in the picture. It is misleading to show a picture with negative and positive terminals along with output ports. The actual product shipped to me has none. I would have to soder myself. If I had knowledge that I would have to sober them in, I wouldn't bother purchasing the product. Very misleading product offer.

25.06.2025

O**O

Review it items

Everything ok

19.05.2025

P**E

Power output accuracy issue..

The power output supply not correct it go more than 220V it hits 800V or above.. Not recommended to buy..

3.10.2019

F**.

No es el mismo de la presentación, no tienes cómo ensamblar los cables de alimentación y salidas

16.11.2023

R**.

Second unit, still no VAC out

When the first one performed like this, I assumed it was just a faulty unit and got it replaced. Now the second one is doing the same thing. Not likely to have two faulty units, so I suspect it is something I am doing wrong, but can't figure it out. I have 12vdc going in, I verified the polarity of the wires is correct. But when I check for VAC voltage on the terminals, I don't get a reading. I have tried two different mutlimeters and I have tried using an a/c socket tester. San results, not power on these terminals. Connection here is V0-V2 which should give me 110vac

12.07.2019

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฿865

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In stock

Sold byAmazon ThailandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Thailand.

Secure transaction

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