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SF500 500W 110v/220v 220v/110v Step Up/Down Automatic Transformer Adapter

4.2 4.2 out of 5 stars 794 ratings

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Purchase options and add-ons

Brand Seven Star
Power Source Corded Electric
Current Rating 5 Amps
Maximum Frequency 60 Hz
Minimum Frequency 50 Hz

About this item

  • This is a 500 watts converter for portable use. If the product is using higher or close to 500 watts it needs a higher power voltage converter.
  • Convert 110/117/120V AC to 220/230/240V AC OR 220/230/240V AC to 110/117/120V AC
  • Output Voltage LED Indicator, No need to set the input voltage - connect to any outlet in the world
  • Universal Output Socket - Accept most plug types from around the world.
  • Thermal Fuse Protection with Reset Button (No need to replace fuses)
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$39.99
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Seven Star SF500 500W 110v/220v 220v/110v Step Up/Down Automatic Transformer Adapter
Seven Star SF500 500W 110v/220v 220v/110v Step Up/Down Automatic Transformer Adapter
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SEVENSTAR sf 300 300watt 110v/220v 220v/110v Step Up/Down Automatic Transformer Adapter
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Price-20% $39.99
List:$49.99
-31% $33.99
List:$48.99
$36.00$107.88$139.99-23% $26.97
List:$35.00
Delivery
Get it as soon as Wednesday, Mar 27
Get it as soon as Wednesday, Mar 27
Get it as soon as Wednesday, Mar 27
Get it as soon as Wednesday, Mar 27
Get it as soon as Wednesday, Mar 27
Get it as soon as Wednesday, Mar 27
Customer Ratings
Easy to use
4.3
4.4
4.4
4.1
Drying power
4.1
3.9
4.5
For traveling
3.6
3.5
2.8
Value for money
4.2
4.0
3.5
Sold By
VIDEO CAMERA CENTER
Yinleader-us
Gandhi Appliances
Yinleader-us
ZHENGXI
Worldimport
power source
Corded Electric
Corded Electric
Corded Electric
Corded Electric
Corded Electric
Corded Electric
current rating
5 amps
9 amps
28 amps
maximum frequency
60 hertz
60 hertz
60 hertz
60 hertz
minimum frequency
50 hertz
50 hertz
50 hertz
50 hertz
50 hertz
specification met
CE
CE
model number
SF500
500w converter 110v to 220v
T-300D
JYK-Down-2000W
sf 300
weight
1 pounds
5 pounds
15 pounds
3.7 pounds

From the manufacturer

Seven Star 500W Fully Automatic Voltage Converter SF-500 500 WATT

Seven Star 500W Fully Automatic Voltage Converter SF-500 500 Watt

500 Watt Step Up/Down AC To AC voltage converter, Operates on 110/220V AC Automatically. No worries to set input voltage manually. Red light indicates power source. Red light indicator for 110V output and Green light indicator for 220V output. Has a universal socket outlet which means any type of plug fits into the converter and power cord with two pin Asian/European type Schuko plug with earth. Has built in thermal fuse protection (Reset button).

Note: This voltage converter does not have US plugs.

US Plug Adapter UK Plug Adapter Europe Plug Adapter Works in France, Spain, Germany, Netherlands, Belgium, Poland, Russia
US Plug Adapter Type G UK Plug Adapter Type E/F Schuko Plug Adapter
Customer Reviews
4.2 out of 5 stars
760
4.4 out of 5 stars
158
4.5 out of 5 stars
509

What's in the box

  • 500 Watt Step Up / Down Voltage Converter Transformer
  • Adapter
  • Warranty
  • Looking for specific info?

    Product information

    Warranty & Support

    Product Warranty: For warranty information about this product, please click here

    Feedback

    Seven

    Seven Star SF500 500W 110v/220v 220v/110v Step Up/Down Automatic Transformer Adapter


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    Product Description

    Brand New Foreign Electricity Automatic AC Power Converter. Use it with appliances up to 500W. Step Up & Down Transformer 500 Watts 50/60 Hz Foreign Electricity Power Converter TECHNICAL SPECIFICATION: INPUT : AC 110v / 220V 50/60 Hz OUTPUT : AC 220v / 110V 50/60Hz High capacity shock proof socket. Lead wire to connect wall socket . Universal Socket Outlet. Thermal Protection. AC Input Plug 5 Amp. 2-Round Pin. Heavy Duty Transformer for safety and reliability. Universal output receptacles (will accept European 2 round pin plug, North America 2 flat pin and 3 prong plug). Reset Button. Safety breaker. Dimensions: 6"L x 3.25"W x 3"H

    Customer reviews

    4.2 out of 5 stars
    4.2 out of 5
    794 global ratings

    Customers say

    Customers like the performance, quality and value of the transformer. They mention that it works perfectly for gaming sessions, is well made and dependable. That said, some complain about the portability, heating and power. They say that it's a bit heavy and eats up valuable weight and space in their luggage. They also mention that the product overheats and needs 20 minutes to cool down. Customers also report that the transformer starts to turn itself spontaneously off.

    AI-generated from the text of customer reviews

    189 customers mention138 positive51 negative

    Customers like the performance of the transformer. They say it works very good, outstandingly, and perfectly for gaming sessions. Some mention that it gets the job done and does it safely.

    "...I blended one jug of smoothie and the blender worked great...." Read more

    "...UPDATE: After six months of use now, it still works fine and I haven't had to replace any fuses yet...." Read more

    "...doesn't spin unless pressed with a lot of pressure, and final spin feature doesn't work at all-..." Read more

    "...I've had my SF500 since November 29, 2013. It has worked flawlessly. I am still using it to this day...." Read more

    115 customers mention83 positive32 negative

    Customers like the quality of the transformer. They mention it's an excellent piece of electronics, well made, and dependable. Some say that it'll auto-sense the voltage and has no trouble with it. Overall, customers are happy with their purchase and recommend it to others.

    "...One of the really neat things about this is it will also convert 110v into 220v!..." Read more

    "...It is a marvel, safe, and effective...." Read more

    "...ratings on this item saying it doesn't work, starts smoking, fuses blow immediately etc...." Read more

    "...The equipment has a power rating of 23 watts, and the transformer has no trouble with it. It gets slightly hot, which is expected of any transformer...." Read more

    27 customers mention27 positive0 negative

    Customers find the transformer highly valuable and good value for money. They say it saves them money from buying new appliances. Customers also say it's the best in the market and worth the trouble.

    "...Another very affordable and compact option is the [..." Read more

    "...something larger than 200Watt transformer so this was there at the RIGHT price!..." Read more

    "...It is small works both ways and has a high power rating. Its not expensive!..." Read more

    "work well so far at a good price. Used it to charge 18V batteries for a battery-tool-kit that requires 110W...." Read more

    43 customers mention29 positive14 negative

    Customers are mixed about the size of the transformer. Some mention it works perfect and is conveniently sized, while others say it's very large for traveling and too large and heavy for international travel.

    "...It handles 880w at 110v. Apart from their compact size, another advantage of these two adapter/transformer combos is that they include all the..." Read more

    "...This unit is true universal adapter. It is small works both ways and has a high power rating. Its not expensive!..." Read more

    "...Not appropriate for travel, at all. I am so glad I found this. It worked perfectly for my entire trip...." Read more

    "...The size is good compared to other brands/models that gives you 500W. Some brands that gives you only 300W is twice the size...." Read more

    22 customers mention13 positive9 negative

    Customers are mixed about the noise produced by the transformer. Some mention that it makes little to no noise while operating, while others say that it hums and buzzes. The transformer is designed to adequately deal with excessive heat. However, some customers report that the unit starts to vibrate and make an awful noise. The unit suddenly emits a loud clicking sound, which is the relay flipping back.

    "...This works without any noise and even in case of any fluctuations, you still have the original PSU to protect the console." Read more

    "...The unit suddenly emitted a loud clicking sound, which was the relay flipping back and forth. This lasted about 10 seconds, and then it smoked...." Read more

    "...I turned on the transformer before plugging in my light. I has a quiet and smooth motor. I then plugged in my light and it lit up beautifully...." Read more

    "...disappointing to receive a new piece of electronics and hear things rattling around inside...." Read more

    77 customers mention17 positive60 negative

    Customers are not satisfied with the portability of the transformer. They mention that it is a bit heavy and eats up valuable weight and space in their luggage.

    "...It is rather heavy, and not something most travellers would want to lug around if they can avoid it...." Read more

    "...It's NOT light weight but you get what you pay for!" Read more

    "...box with it, but now I feel stupid for buying an expensive, heavy step-down transformer that's clearly no better than the cheap dime-store converters..." Read more

    "...It's light and handy...." Read more

    46 customers mention13 positive33 negative

    Customers are dissatisfied with the heating of the transformer. They mention that it overheats and needs to be put in a cool place. Some customers also report that the thermal protection still tripped on a load that was under 250W, and that it burned its own PC board.

    "...And that it burned its own PC board.These units are labeled across the front: "Quality Guarantee Safety Breaker"...." Read more

    "...It was sitting in a well-ventilated, cool place, but the thermal protection still tripped on a load that was under 250W. At least it came back on,..." Read more

    "...a rated consumption of 150W and requires 110V. This unit does the job without heating up or any other hassles...." Read more

    "...Beyond 3-4 hours, for some graphics heavy games, the transformer does heat up in which case, the auto thermal shutoff takes over and turns the..." Read more

    46 customers mention13 positive33 negative

    Customers are dissatisfied with the power of the transformer. They mention that it turns off spontaneously, gets hot, and shuts down automatically when it overheats. Some say that the transformer unexpectedly dies and makes a burning smell.

    "...blended several jugs of smoothies and then suddenly the blender stopped mid-way while I was blending. Also the converter's power light went off...." Read more

    "...Please be aware that this transformer is limited to 200 Watts only, and you probably don't want to max that out either to stay on the safe side...." Read more

    "...It is small works both ways and has a high power rating. Its not expensive!..." Read more

    "...This last failure also killed the electronics in my media centre...." Read more

    Electric Devices are not supposed to be used for a Baby Rattle
    3 Stars
    Electric Devices are not supposed to be used for a Baby Rattle
    It is really disappointing to receive a new piece of electronics and hear things rattling around inside. It was easy to take the four screws off from the bottom side. There were two pieces of plastic "wandering around". I could see one was a broken piece from the outlet plug housing. This one did not look critical to operation. The other piece looked like a plastic comb. One edge looked like it was broken. Also it looked like there was some glue one side. I could not see where it went without further dis-assembly which I was not comfortable doing. There are 3 wires inside the cover that go from the outlet plug side of the box over the transformer to the side where the on/off switch is. One of the wires was very pinched. This appears to be from lack of care during assembly. After removing the broken pieces, I tried the unit. It appears to work correctly. I will charge my cordless drill batteries later today. If there are any problems, I will update the review. I question the statement printed on the unit "Quality Guarantee".
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    Reviewed in the United States on March 22, 2016
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    1.0 out of 5 stars Tal vez tuve mala suerte con uno defectuoso..
    Reviewed in Mexico on March 11, 2016
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