6V AC-AC power adapter by PHC Enterprise with 1.67A output, 2.1mm x 5.5mm plug, wall transformer for electronic devices

PHC Enterprise 12V AC-AC power adapter, 1000mA (1A), with 2.1mm x 5.5mm connector

6V AC-AC Power Adapter, 1670mA (1.67A) Wall Transformer, 2.1mm x 5.5mm Plug | AC-0616A

Name: 6V AC-AC Power Adapter, 1670mA (1.67A) Wall Transformer, 2.1mm x 5.5mm Plug | AC-0616A
Rating: 4.43 (21 reviews)

by PHC Enterprise, Inc.

$13.00 - $13.00

$13.00

$13.00 - $13.00

$13.00

6V AC-AC Linear Wall Transformer — 1670mA (1.67A) |

Part AC-0616A

The AC-0616A is a UL/cUL Listed linear wall-mount AC-to-AC power adapter delivering clean 6V AC output at 1670mA (1.67 Amps). This is a specialty adapter for devices that specifically require 6VAC alternating current (~) — most commonly vintage holiday lighting, animated Christmas ornaments, and fiber-optic decorations that cannot run on DC power.

⚠️ Important Tech Tip: This is an AC-to-AC adapter. It outputs alternating current (~), NOT DC (⏳). The vast majority of consumer electronics require DC. Check your device's power label for the ~ symbol or VAC before purchasing. Using this on a DC-only device can cause permanent damage.

As a non-regulated linear supply, the output voltage will measure higher than 6V under no-load conditions and will settle to the rated voltage once a load is applied.

Technical Specifications

Model: AC-0616A
Input: 120V AC, 60Hz (standard US wall outlet)
Output: 6V AC @ 1670mA (1.67 Amps)
Connector: 2.1mm (ID) x 5.5mm (OD) straight barrel plug
Type: Linear wall-mount transformer (non-regulated)
Safety: UL/cUL Listed

Common Use Cases & Compatible Devices

Vintage Holiday Lighting: Animated Christmas ornaments, fiber-optic trees, and rotating holiday displays requiring 6VAC
Specialty Decorations: Fiber-optic fountains, lighted village accessories, and motion-activated holiday figures
Low-Voltage AC Applications: Any device rated for 6VAC input with a 2.1mm x 5.5mm barrel connector

Frequently Asked Questions

Q: How do I know if my device needs 6VAC or 6VDC?
A: Check the power input label on your device. AC is indicated by the ~ symbol or the letters VAC. DC is indicated by ⏳ or VDC. If it says DC, this adapter will not work.

Q: Why does my voltmeter read higher than 6V?
A: Linear transformers are non-regulated. The output voltage reads higher under no-load (nothing plugged in) and settles to the rated 6V when a load is applied. This is normal behavior.

Q: Is this compatible with international voltages?
A: No — this unit is designed for 120V AC 60Hz (US/Canada only). It is not compatible with 220-240V outlets without a step-down transformer.

Q: What if I need a different voltage?
A: See our full AC-AC adapter line for 9V, 12V, 14V, 18V, and other voltages.

5 stars: 17 (81%)
4 stars: 1 (5%)
3 stars: 0 (0%)
2 stars: 1 (5%)
1 star: 2 (10%)

Exactly what I needed. Prompt delivery. No complications. Not a complaint.

Works as advertised

AC-AC Power Supply 6V AC @ 1670mA; 2.1 x 5.5mm

Hallmark ornaments

We have some older hallmark ornaments that were designed to plug into the string of tree lights. But the lights changed and the ornaments would no longer work. This power supply works as a perfect substitute.

Exact fit

Allgood

Hi there, thank you for leaving a positive review for our AC-AC Power Supply. We're glad to hear that it's working well for you. Thanks for your business and have a happy holiday season!

Did the Job

I needed it for extensive testing of a diode array -- it worked flawlessly !

Thank you for leaving a positive review for our AC-AC Power Supply. We're glad to hear that it did the job for your testing needs and performed flawlessly. Thank you for choosing our product.

Worked good only concern is it is pretty warm to touch.

Thank you for your purchase and giving us the time to leave a review! Fortunatley, our AC-AC power supplies all have the UL safety approval and meet all of its stated specs. Power supply can feel warm to the touch depending how much current your product is drawing (in relation to what the power supply is rated for) and for how long.

Excellent product

Used it to power an antique Mr. Christmas Music box. It was a rare 9 Volt AC (not DC).

Thank you for your feedback! We are happy to hear that our AC-AC power supply was able to power your antique Mr. Christmas Music box. We strive to provide products that meet our customers' unique needs. Thank you for choosing our product.

Very very helpful

We were searching everywhere for the correct power outlet and they were the only ones that helped us!! Huge effort for an inexpensive product

So happy to find what you are looking for! Thank you for your business and your kind words. Have a great day!

Always outstanding

They had exactly what I needed to keep my star wars ornament working
Thanks guys

Thank you for your kind words! We're happy to hear that our AC-AC Power Supply was able to keep your Star Wars ornament working. We appreciate your support. Have a great day!

Good value!

Thank you for leaving a review! We are glad to hear that you found our product to be a good value. We appreciate your feedback and hope to continue providing affordable and reliable products. Have a great day!

Worked oerfectly

Exactly as ordered. Powered Christmas display of moving ice skaters. Fun for everyone!

Great to hear that our AC-AC Power Supply worked perfectly for your Christmas display! Thank you for your business and for leaving a positive review. Enjoy your Christmas!

AC/AC for the win

Used these to power my legacy Hallmark Star Trek ornaments and they work great. AC/AC is hard to find and the Powershack had these quality units and shipped them quick. Wish I’d had another option besides USPS for shipping but otherwise great product and experience.

Thank you for taking the time to leave a review! We are so glad to hear that our AC/AC power supply worked perfectly for your legacy Hallmark Star Trek ornaments. We understand that AC/AC options can be hard to find, so we are happy to provide a quality product for your needs.

Thank you for choosing ACDC Powershack!

Exactly what I needed

Product came on time exactly as described. Worked perfectly.

AC-AC Power Supply 6V AC @ 1670mA; 2.1 x 5.5mm

Our extender went down for our RFD door locks. The transformer was bad. To order another one from the lock company was going to cost $45- and 4-6-weeks delivery. AC/DC Power Shack was cheaper and quicker, and it works perfectly.

Thank you for your business and for taking the time to leave us a review. We are so glad that our AC-AC Power Supply was able to help with your RFD door locks. We understand how frustrating it can be when a transformer goes bad, and we are happy to hear that our product was a cost-effective and timely solution for you. We appreciate you sharing your experience with the community and for trusting us with your power supply needs. Happy Holidays!

AC-AC Power Supply 6V AC @ 1670mA; 2.1 x 5.5mm?

It works. Would prefer a 90 degree offset, but it works asis.

6V AC Power Supply

Works great, puts out approximately 7.4 VAC which is probably a combination of build tolerance and my actual outlet voltage being a little higher than average determining this, but worked perfect for my application. These are a little hard to find at this voltage, so was happy getting one here. Shipping was quick, well made product, would buy again.

Hi there! Thank you for your positive review of our AC-AC Power Supply. We're glad to hear that it's working well for you and that you were able to find a product with the specific voltage you needed. At 120VAC input, it's normal for the power supply to read about 1.5VAC higher on an open circuit. But once it's plugged into your device, it should lower down to the advertised voltage. Thank you for choosing our product and we hope to see you again!

AC-AC Power Supply 6V AC @ 1670mA; 2.1 x 5.5mm

The tracking number #2661 did not connect with USPS number system. I could not track shippment even after downloading SHOP..I had paid $10 shipping. The USPS required an additional $6.65 to release the package to me. USPS rep was vocal about trying to ship this as first class mail. The shipping cost more than the power supply. The power supply does worked well. Bill Tilley

Voltage not rated correctly

Underpowered.

Sorry the power supply didn't meet your expectations. An open load reading for a 6VAC (6 Volts Alternating Current) power supply typically reads very close to the supply's rated voltage, which in this case is 6 volts. When there is no load connected to the power supply, there is no current flowing through the circuit, so there are no voltage drops across any internal resistances or components. As a result, the voltage at the output of the power supply remains very close to its rated value, and you would typically measure close to 6VAC with an appropriate voltage measuring instrument.

However, keep in mind that there can be some minor variations and tolerances in power supply performance, and open load voltage readings can sometimes be slightly above or below the rated voltage, but they should generally be quite close to the specified value.

Where as a AC-DC & non-regulated power supply would usually read about 1.5x higher then the stated rating in a open load.

5 stars: 17 (81%)
4 stars: 1 (5%)
3 stars: 0 (0%)
2 stars: 1 (5%)
1 star: 2 (10%)

Exactly what I needed. Prompt delivery. No complications. Not a complaint.

Works as advertised

AC-AC Power Supply 6V AC @ 1670mA; 2.1 x 5.5mm

Hallmark ornaments

Exact fit

Allgood

Hi there, thank you for leaving a positive review for our AC-AC Power Supply. We're glad to hear that it's working well for you. Thanks for your business and have a happy holiday season!

Did the Job

I needed it for extensive testing of a diode array -- it worked flawlessly !

Thank you for leaving a positive review for our AC-AC Power Supply. We're glad to hear that it did the job for your testing needs and performed flawlessly. Thank you for choosing our product.

Worked good only concern is it is pretty warm to touch.

Excellent product

Used it to power an antique Mr. Christmas Music box. It was a rare 9 Volt AC (not DC).

Very very helpful

We were searching everywhere for the correct power outlet and they were the only ones that helped us!! Huge effort for an inexpensive product

So happy to find what you are looking for! Thank you for your business and your kind words. Have a great day!

Always outstanding

They had exactly what I needed to keep my star wars ornament working
Thanks guys

Thank you for your kind words! We're happy to hear that our AC-AC Power Supply was able to keep your Star Wars ornament working. We appreciate your support. Have a great day!

Good value!

Worked oerfectly

Exactly as ordered. Powered Christmas display of moving ice skaters. Fun for everyone!

Great to hear that our AC-AC Power Supply worked perfectly for your Christmas display! Thank you for your business and for leaving a positive review. Enjoy your Christmas!

AC/AC for the win

Thank you for choosing ACDC Powershack!

Exactly what I needed

Product came on time exactly as described. Worked perfectly.

AC-AC Power Supply 6V AC @ 1670mA; 2.1 x 5.5mm

AC-AC Power Supply 6V AC @ 1670mA; 2.1 x 5.5mm?

It works. Would prefer a 90 degree offset, but it works asis.

6V AC Power Supply

AC-AC Power Supply 6V AC @ 1670mA; 2.1 x 5.5mm

Voltage not rated correctly

Underpowered.

Where as a AC-DC & non-regulated power supply would usually read about 1.5x higher then the stated rating in a open load.

5 stars: 17 (81%)
4 stars: 1 (5%)
3 stars: 0 (0%)
2 stars: 1 (5%)
1 star: 2 (10%)

Exactly what I needed. Prompt delivery. No complications. Not a complaint.

Works as advertised

AC-AC Power Supply 6V AC @ 1670mA; 2.1 x 5.5mm

Hallmark ornaments

Exact fit

Allgood

Hi there, thank you for leaving a positive review for our AC-AC Power Supply. We're glad to hear that it's working well for you. Thanks for your business and have a happy holiday season!

Did the Job

I needed it for extensive testing of a diode array -- it worked flawlessly !

Thank you for leaving a positive review for our AC-AC Power Supply. We're glad to hear that it did the job for your testing needs and performed flawlessly. Thank you for choosing our product.

Worked good only concern is it is pretty warm to touch.

Excellent product

Used it to power an antique Mr. Christmas Music box. It was a rare 9 Volt AC (not DC).

Very very helpful

We were searching everywhere for the correct power outlet and they were the only ones that helped us!! Huge effort for an inexpensive product

So happy to find what you are looking for! Thank you for your business and your kind words. Have a great day!

Always outstanding

They had exactly what I needed to keep my star wars ornament working
Thanks guys

Thank you for your kind words! We're happy to hear that our AC-AC Power Supply was able to keep your Star Wars ornament working. We appreciate your support. Have a great day!

Good value!

Worked oerfectly

Exactly as ordered. Powered Christmas display of moving ice skaters. Fun for everyone!

Great to hear that our AC-AC Power Supply worked perfectly for your Christmas display! Thank you for your business and for leaving a positive review. Enjoy your Christmas!