Goldsource STU-500 500W Step Up/Step Down Voltage Transformer Converter

alovet-44
(564)
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US $44.99
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or 4 interest-free payments of $11.25 available with
Condition:
Open box

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Located in: Temple, Pennsylvania, United States
Delivery:
Estimated between Tue, Oct 21 and Mon, Oct 27 to 94104
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eBay item number:357202698136
Last updated on Jul 13, 2025 11:22:29 PDTView all revisionsView all revisions

Item specifics

Condition
Open box: An item in excellent, new condition with no wear. The item may be missing the original ...
Binding
Electronics
ProductGroup
Single Detail Page Misc
Plug Type
Universal
PartNumber
STU-500
Custom Bundle
No
Label
Goldsource
UPC
615564715170
MPN
STU500
Input Voltage
120 V
Battery Size
A
Publisher
Goldsource
Smart Home Compatibility
Universal
Brand
Goldsource
Type
Battery Charger
Model
STU-500
Manufacturer
Goldsource
Recommended Environment
Indoor
Features
Heavy Duty, Indicator Light
Country/Region of Manufacture
China
Output Voltage
220 V
Voltage Conversion
Step-Up & Down
Category

Item description from the seller

About this seller

alovet-44

99.5% positive feedback•1.3K items sold

Joined Feb 2023
Usually responds within 24 hours
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Detailed seller ratings

Average for the last 12 months
Accurate description
5.0
Reasonable shipping cost
4.8
Shipping speed
5.0
Communication
5.0

Seller feedback (524)

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  • t***0 (107)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    The seller was quick to respond and promptly resolved the shipping issue by immediately sending out a new package. The item was safely packaged and arrived without any damage. Great customer service! I would definitely purchase from this seller again.
    2 Bottles Of Apotheke Canvas Plant Based Hand Wash Soap 16.2 Fl.oz Each (#357284212542)
  • 5***n (126)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    New in the original packaging, amazing! Wonderful condition, I am very pleased. Packaging for shipment was inspired and robust. Description and photos were spot on. Fast shipping. And a great value. I can heartily recommend this seller. Good job! AAA+++!!!
    VTG 1968 NOS ACU-MATH 400 Slide Rule (12”) W/Cover Sheath Made In USA NEW SEALED (#357280681880)
  • j***j (1711)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Good price. Quick responses. Fast delivery. Well packaged. The Bath & Body Works Aromatherapy Grapefruit Peppermint Revitalizing Massage Oil arrived in “Brand New” condition as advertised on a hard to find, discontinued item. A+. Top notch eBay seller. Thank you! :-)
    Bath And Body Works Aromatherapy Grapefruit Peppermint Massage Oil 6 Fl Oz (#356145159326)
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Product ratings and reviews

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4.8
65 product ratings
  • 55 users rated this 5 out of 5 stars
  • 7 users rated this 4 out of 5 stars
  • 2 users rated this 3 out of 5 stars
  • 0 users rated this 2 out of 5 stars
  • 1 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

See all 42 reviews
  • by mherman3462v8t
    Sep 19, 2018Top favorable review

    Unit did well powering a 220V audio receiver appliance from 110V AC.

    The AC voltage converter is very massive and heavy unit, containing a large transformer, as it is capable of high power. One must first set the Incoming AC voltage at your wall plug with the jumper mechanism in the back of the unit. I needed to set 110V for the US supply. The front of the unit has 2 outputs to choose from. I needed the 220V for a high power European model audio receiver. The unit has worked very nicely during my week of testing. The unit can get warm as expected, so it should be placed where it's heat will not cause problems.

    Verified purchase: YesCondition: NewSold by: instapark-retail

  • by sbbailey28
    Feb 21, 2016Top critical review

    works great but smells!

    The only reason I am not giving this product five stars is because it has such a strong chemical/paint odor that it literally made whatever room I put it in smell like it. The smell has finally dissipated for the most part except for when I turn it on. I really wish they would use a non-toxic sealer so we wouldn't have to breathe in the unpleasant/toxic fumes this thing seems to give off

    Verified purchase: YesCondition: NewSold by: instapark-retail

  • by sb98neon
    Jan 01, 2016

    Works well so far

    Very inexpensive item. I don't even see a brand name on it. It isn't high quality necessarily, but the casing seems tough and sturdy. I've only used it twice to run a foot bath made in Germany (Max power 400W), and it worked well. The switch lights up when it is on and it didn't seem to overheat at all. As long as it continues to perform this way, I'd say this is a great, basic voltage converter.

    Verified purchase: YesCondition: NewSold by: T1sUFuH3SEq@Deleted

  • by lokw123
    Jul 18, 2018

    Very nice, has extra fuses!

    This worked for an old computer I have, which needs 220V/240V. The output plugs accept the standard grounded NEMA plug on either the 110V output or 240V output plugs, which is nice as I was able to use a NEMA IEC cable without building one. It's not too smelly as some people have said. Just a gentle hum when being used. I happened to blow an old capacitor on the computer, which in-turn blew the transformer fuse. Luckily the transformer came with extra fuses! Thank you for a great, affordable product!

    Verified purchase: YesCondition: NewSold by: instapark-retail

  • by mytinybay
    Mar 20, 2017

    Consider heavier fuse.

    The stock fuse it comes installed with is too smaller capacity for a 500 watts transformer. I did not bother to check the amperage ratings of the fuses but every time I put on a 40 watts pure resistive load, it blew out. If it really can handle 500 watts on a 110 volts input I would use a 4 amps thermal fuse. But other than that it looks okay. I still gave it a five star because of the built and size that looks like it should be able to handle at least 300 watts without getting too hot. I did not try to put on a 500 watts load because nobody is going to use it for that kind of load. Since my purpose was to use it on step up mode for a 40 watts 220 volts flat iron, I replaced the stock fuse with an aftermarket 1 amp slow blow that solved my problem, but not all the customers are going to ...

    Verified purchase: YesCondition: NewSold by: tcalvert321

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