SHNITPWR AC Adapter 120W Universal Power Adapter 4V 5V 6V 9V 12V 15V 18V 19V 20V 24V Adjustable Switching Power Supply 100V~240V AC to DC 4V ~ 24V 5A Converter with 14 Tips & Polarity Converter

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9.4Expert Score
Overall BVR Rating
Total Reviews:187
SHNITPWR AC Adapter 120W Universal Power Adapter 4V 5V 6V 9V 12V 15V 18V 19V 20V 24V Adjustable Switching Power Supply 100V~240V AC to DC 4V ~ 24V 5A Converter with 14 Tips & Polarity Converter
PROS
  • 13 REVIEWS POWER SUPPLY
  • 15 REVIEWS POWER ADAPTER
  • 8 REVIEWS REVERSE POLARITY
  • 3 REVIEWS PRETTY MUCH
  • 12 REVIEWS WORKS GREAT
  • 3 REVIEWS SMALL ELECTRONICS
  • 7 REVIEWS VOLTAGE OUTPUT
  • 8 REVIEWS GREAT POWER
  • 19 REVIEWS ADAPTERS
  • 11 REVIEWS DEVICE
  • 7 REVIEWS ACCURATE
  • 6 REVIEWS AMPS
  • 5 REVIEWS CABLE
  • 12 REVIEWS PLUG
  • 5 REVIEWS DIAL
  • 10 REVIEWS TIPS
  • 11 REVIEWS VOLT
  • 6 REVIEWS CHARGER
  • 3 REVIEWS CLOSE
  • 5 REVIEWS CONNECTOR

Input: AC 100~240V, 50/60Hz ; Output: DC 4~24V Adjustable, Max 5A 120W ; It can supply with any voltage between 4~24V,such as 4V 4.5V 5V 5.5V 6V 9V 12V 14V 15V 16V 18V 19V 19.5V 20V 22V 24V, etc and any amp less than 5A, such as such as 300mA, 500mA,1A, 1.5A, 2A, 2.5A, 3A, 3.5A, 4A, 4.5A, 5A. LCD display will show the output voltage, in case that wrong voltage regulation damage your device.

Top Positive Review

I purchased a portable digital audio player. Just under $40… obviously not intended to pass it down from one generation to the next. Just the same, I expected it last at least a couple years. (I try to take care of my stuff.) I decided to spend a few bucks more and have a GUARANTEE that it would last 3 years. Asurion fit the bill.

Alas – the audio player “gave up the ghost” about 7 months into my ownership experience. It worked in the morning… in the afternoon I pushed the power button – NOTHING. I tried charging it… pushed the “reset” button… exchanged a couple emails with their so-called tech support people. It quickly became apparent that its useful life was over.

I tried to enter a claim online… the brand name of the player was obscure enough that it wasn’t on the list. So I called the toll-free number and spoke with a very informed and helpful Asurion agent. In five minutes we had made arrangements for a refund. She emailed me a prepaid return label, to send the defective player back, and less than 24 hours later I had a full refund in the form of “Amazon credit” for the purchase amount. So I was out 4 bucks (the cost of the Asurion) rather than 40.

I’d do it again in a heartbeat – in fact, I did! I also purchased a 3-year plan to cover my digital camera, for about 1/10 the cost of the camera. Peace of mind is worth something, and I have confidence in the Asurion product at this point.

6 People Found This Helpful

Top Critical Review

I figured it was worth the 4 bucks because I bought a cheap head unit. The product arrived defective, so I went through all the forms only to be told that it’s been too soon since purchase and that I should contact Amazon. The effective date on the policy claims that “the date of delivery” is when protection starts. I love it when I’m scammed. So many people lose their info or forget they bought they even bought this so you’d think they’ve made enough money to actually fulfill a claim.
107 People Found This Helpful

Customer Questions & Answers

Is there a way to lock the voltage and prevent it from accidentally changing when in use?
Answer: No, best to use a fixed 12volt power supply for that.

I want to use this to power my qrp ham radio. is this a low noise power supply?
Answer: I don’t know what you call low noise but I used it to power a video camera and it has a definite buzzing in the audio.

I think small short cable is Not an extension but is a reverse polarity cable for devices that need reverse polarity otherwise would cause damage?
Answer: There are no such things as “reverse polarity cable” – all cables are staight, with no crossover

will this power an 18vdc motor and not fold back when trying to start the motor?
Answer:

It honestly depends on the motor you are trying to start. I have used this adapter to test a small toy helicopter (it was missing its lithium polymer battery pack) and it ran just fine, though I have never used it on a motor that needed more than 12 volts to operate. You can always connect a capacitor in parallel to th??

How can I determine + or – for the correct use of this product on my Mini table saw?
Answer:

You can use the included adapter that splits the cable to a positive and negative terminal (labeled). Alternatively, you can use a standard multimeter to test the polarity. I would check the requirements on the table saw as well, or at least the colors of the wires. Usually red is positive and black is negative. Also, ??

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Expert Score 9.4
PROS:
  • 13 REVIEWS POWER SUPPLY
  • 15 REVIEWS POWER ADAPTER
  • 8 REVIEWS REVERSE POLARITY
  • 3 REVIEWS PRETTY MUCH
  • 12 REVIEWS WORKS GREAT
  • 3 REVIEWS SMALL ELECTRONICS
  • 7 REVIEWS VOLTAGE OUTPUT
  • 8 REVIEWS GREAT POWER
  • 19 REVIEWS ADAPTERS
  • 11 REVIEWS DEVICE
  • 7 REVIEWS ACCURATE
  • 6 REVIEWS AMPS
  • 5 REVIEWS CABLE
  • 12 REVIEWS PLUG
  • 5 REVIEWS DIAL
  • 10 REVIEWS TIPS
  • 11 REVIEWS VOLT
  • 6 REVIEWS CHARGER
  • 3 REVIEWS CLOSE
  • 5 REVIEWS CONNECTOR
SHNITPWR AC Adapter 120W Universal Power Adapter 4V 5V 6V 9V 12V 15V 18V 19V 20V 24V Adjustable Switching Power Supply 100V~240V AC to DC 4V ~ 24V 5A Converter with 14 Tips & Polarity Converter
SHNITPWR AC Adapter 120W Universal Power Adapter 4V 5V 6V 9V 12V 15V 18V 19V 20V 24V Adjustable Switching Power Supply 100V~240V AC to DC 4V ~ 24V 5A Converter with 14 Tips & Polarity Converter
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