Other Sellers on Amazon
89% positive over last 12 months
SF500 500W 110v/220v 220v/110v Step Up/Down Automatic Transformer Adapter
Return this item for free
Free returns are available for the shipping address you chose. You can return the item for any reason in new and unused condition: no shipping charges
Learn more about free returns.- Go to your orders and start the return
- Select the return method
- Ship it!
Return this item for free
Free returns are available for the shipping address you chose. You can return the item for any reason in new and unused condition: no shipping charges
Learn more about free returns.- Go to your orders and start the return
- Select the return method
- Ship it!
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)
Frequently bought together
Similar items that may deliver to you quickly
- Yinleader 500W Voltage Transformer Power Converter(110V to 220V,220V to 110V) Step Up/Down Converter 110/120 Volt - 220/240 Volt w/US Power Cord,Circuit Breaker Protection (VTUS-500)FREE Shipping on orders over $35 shipped by AmazonGet it as soon as Wednesday, Mar 27
- DC to DC Converter DC 48V-120V to 12V 15A Converter Adapter Step Down Transformer Voltage Reducer 180W Power Regulator for Electric Vehicle Cart Club Car Scooter BicylceAmazon's Choicein Power ConvertersFREE Shipping on orders over $35 shipped by AmazonGet it as soon as Wednesday, Mar 27Only 2 left in stock - order soon.
- UMI Step Up 110v to 220v Voltage Converter 800W for Europe and Asia 220-240V Appliance Use in US Canada Mexico - Power TransformerFREE Shipping by AmazonGet it as soon as Wednesday, Mar 27
- 12V to 24V DC Step Up Converter DC-DC Boost Voltage Transformer (10A 240W)FREE Shipping on orders over $35 shipped by AmazonGet it as soon as Wednesday, Mar 27
- UMI 1600W Step Up Voltage 110v to 220v Converter, Heavy Duty Power Converter 110v to 220v, Power Transformer with Auto Mode, Step Up 110v to 220v - Europe to US Voltage ConverterFREE Shipping by AmazonGet it as soon as Wednesday, Mar 27
- SEVENSTAR sf 300 300watt 110v/220v 220v/110v Step Up/Down Automatic Transformer AdapterFREE Shipping on orders over $35 shipped by AmazonGet it as soon as Wednesday, Mar 27Only 9 left in stock - order soon.
Compare with similar items
This Item Seven Star SF500 500W 110v/220v 220v/110v Step Up/Down Automatic Transformer Adapter | Recommendations | dummy | dummy | dummy | dummy | |
Try again! Added to Cart | Try again! Added to Cart | Try again! Added to Cart | Try again! Added to Cart | Try again! Added to Cart | Try again! Added to Cart | |
Price | -20% $39.99$39.99 List: $49.99 | -31% $33.99$33.99 List: $48.99 | $36.00$36.00 | $107.88$107.88 | $139.99$139.99 | -23% $26.97$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
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 | 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
Looking for specific info?
Product information
Product Dimensions | 8.5 x 3 x 3.5 inches |
---|---|
Item Weight | 1 pounds |
Manufacturer | Seven Star |
ASIN | B001TPZ294 |
Item model number | SF500 |
Customer Reviews |
4.2 out of 5 stars |
Best Sellers Rank | #283,303 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #1,140 in Power Converters |
Is Discontinued By Manufacturer | No |
Date First Available | February 23, 2009 |
Warranty & Support
Feedback
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
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers 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
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
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
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
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
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
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
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
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
Reviews with images
-
Top reviews
Top reviews from the United States
There was a problem filtering reviews right now. Please try again later.
I researched voltage converters on Amazon and discovered the suggested advice is the converter's wattage should not only be greater than the device's wattage but actually 1.5 times of the device's wattage. So that means for my blender I should get a converter capable of at least 330 watts.
I picked this converter for three reasons. First the wattage is more than enough. I wanted a buffer and I didn't want to just get a 330 watt converter and also I didn't see any converters with 330 watts. So the next best wattage is 500. Second this converter has auto voltage. With my previous converter, I had to flip a switch directing which way to convert. I never liked this because I was afraid it might be flipped accidentally and possibly cause damage. Third the size is similar to my previous converter.
I am glad I am able to blend again. I blended one jug of smoothie and the blender worked great. The converter is also easy to use: just plug it in, plug in the device and flip the converter's power switch.
The smoothie also tastes great! If anyone's interested:
1 Ataulfo Mango, peeled and sliced, the rock/seed is not used
2 California Mandarins, peeled and separated, remove any seeds
1 Banana, peeled and sliced
Buttermilk churned from about half a pint of Heavy Whipping Cream, resulting in about 150 mL
4 Ice Cubes
My blender is: National Juicer/Blender Model: MJ-171NR
UPDATE: After six months of use now, it still works fine and I haven't had to replace any fuses yet. But you have to be aware of the wattage on the appliances you are plugging into it. I just saw some of the reviews with lower ratings on this item saying it doesn't work, starts smoking, fuses blow immediately etc. 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. Find out how many Watts you are plugging into it before you turn it on and keep in mind 200 is fairly low. If you have larger wattage items you will need to invest your money into a transformer that can handle that.
You can probably safely run the following items using this transformer: clock radio, electric blanket, laptop, a small TV, radio, VCR/DVD. You may hit the limit and ask for trouble with desktop computers, Hi-Fi equipment, XBone, PS4, LCD TVs - you may want to get a 500W transformer for those. You will almost certainly blow the fuses if you try to run: any sort of kitchen appliance, power tools, vacuum cleaner, hair dryer, iron. You need something much more heavy duty for those items.
I've had my SF500 since November 29, 2013. It has worked flawlessly. I am still using it to this day. I use it in New Zealand for plugging in any US purchased electronic devices that require up to 500 watts of power. This means it's been used for hundreds of hours (as opposed to a few hours whilst travelling, for example).
I've used it extensively for a 200 watt ( Tribest Personal Blender , and almost daily with a low wattage (something like 12.5w) Waterpik . I've never had any issues with it.
>> WEIGHT <<
It is rather heavy, and not something most travellers would want to lug around if they can avoid it. I recommend checking the maximum wattage you require for your strictly 110v devices whilst traveling. (I say "strictly" because you obvious want to check your devices don't in fact have a dual voltage adapter already. Many devices have their own transformer within their plug, which often support both 110v and 220v input). If you don't actually require 500 watts (that's around 4.5 amps, at 110v) then take a look at smaller transformers. For example, the Simran SMF-200 Deluxe 200 Watts step-down transformer handles 200 watts, which may be adequate for many people.
>> THE PLUG PINS <<
The SF500 comes with a European style plug on it. Which has two round pins (live and neutral) and an earth on the plug housing. In many countries you'll need a pin adapter, so make sure you've got all the adapters you require. For New Zealand and Australia (and China), you'll need one of these, BESTEK Grounded Universal Plug Adapter USA to Australia, China Travel Plug Adapter Plug Kit , and for the United Kingdom and Hong Kong, one of these BESTEK Grounded Universal Plug Adapter Travel Plug Kit for USA to UK, Ireland, Hong Kong (Type G) - 3 Packs .
IMPORTANT NOTE: As this is an auto-switching transformer (it can receive receive 110 and 240, and transform it to the opposite voltage), it may take a some milliseconds to transform the input voltage to the opposite output voltage. Therefore, always turn the plug the transformer in, and turn it on, before you plug in the device you plan to use it with. This will ensure you don't inadvertently deliver 220v to a 110v device. Taking this precaution is not so important if you are converting from 110v to 220v, but is very important when converting 220v to 110v.
>> ALTERNATIVES <<
As I write this, the SF500 is $35, with free (but not Prime) shipping. For about the same price, you can get 2000W Step Down Voltage Converter 220V to 110V and Universal Travel Plug Adapter Combo . It handles up to 2000 watts. Although, you'll need to ensure none of your devices require an earth pin, as this transformer/adapter combo only supports two pins. Another very affordable and compact option is the International Power adapter universal travel adapter with 4USB Port / 5A Travel Charger Plug Charger PowerI Wall Adapter Multifunction Universal Converter Global Sockets American / British / EU / Aust , which is currently $21. It handles 880w at 110v. Apart from their compact size, another advantage of these two adapter/transformer combos is that they include all the various pin configurations you're like to need. So you can avoid carrying around a separate set of pin adapters.
>> MY RECOMMENDATION <<
I think the average international traveller will find it more convenient to use one of the small combo adapter/transformers, like the two I've mentioned. I use the SF500 at home, as opposed to when travelling. Because of its size and weight, I'd prefer not to lug it around travelling. It works great, however, as a low wattage (500w) transformer around the home.
Top reviews from other countries
Haciendo reset volvia a 220v y luego otra vez y sin aviso cambiaba a 110v. Nos cansamos y con temor de que genere daño permanente en la heladera (160w) decidimos devolverlo. La verdad es que si no tuve mala suerte y me toco uno defectuoso, no lo recomendaria.