---
product_id: 1595390
title: "Seven Star SF500 500W 110v/220v 220v/110v Step Up/Down Automatic Transformer Adapter"
brand: "seven star"
price: "₨41282"
currency: LKR
in_stock: true
reviews_count: 3
category: "Seven Star"
url: https://www.desertcart.lk/products/1595390-seven-star-sf500-500w-110v-220v-220v-110v-step-up
store_origin: LK
region: Sri Lanka
---

# 500W power capacity Universal socket for global plugs Auto step up/down voltage conversion Seven Star SF500 500W 110v/220v 220v/110v Step Up/Down Automatic Transformer Adapter

**Brand:** seven star
**Price:** ₨41282
**Availability:** ✅ In Stock

## Summary

> 🌐 Power your world effortlessly—anywhere, anytime!

## Quick Answers

- **What is this?** Seven Star SF500 500W 110v/220v 220v/110v Step Up/Down Automatic Transformer Adapter by seven star
- **How much does it cost?** ₨41282 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/1595390-seven-star-sf500-500w-110v-220v-220v-110v-step-up)

## Best For

- seven star enthusiasts

## Why This Product

- Trusted seven star brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Global Compatibility:** Universal output socket accepts most international plug types for effortless travel or relocation.
- • **Powerful 500W Capacity:** Handles your essential devices with a comfortable wattage buffer to avoid overloads.
- • **Built-in Thermal Safety:** Thermal fuse with reset button protects your devices and your peace of mind.
- • **Compact & Portable Design:** Lightweight and space-saving, perfect for professionals on the move or remote work setups.
- • **Seamless Auto Voltage Switching:** No manual toggling—plug in anywhere from 110V to 240V and it adapts instantly.

## Overview

The Seven Star SF500 is a compact, reliable 500W automatic step up/down voltage converter designed for global use. It supports input voltages from 110V to 240V and outputs the corresponding voltage without manual switching. Featuring a universal socket, thermal fuse protection with reset, and a lightweight design, it’s ideal for safely powering small appliances and electronics during international travel or relocation.

## 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

Review: Works great for my 220 Watt blender - I use a blender that requires 230-240 volts and 220 watts. I connect a voltage converter to it capable of up to 230 watts. I've never had a problem with the converter in the last ~10 years. Then about a few months ago it stopped working. I had already 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. For each jug, the blender would be on for a couple of minutes in both normal and high power modes. Then the blender would be off for a few moments while I pour out the smoothie and refill the jug with new ingredients. I researched voltage converters on desertcart 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
Review: My compact, trustworthy converter - I moved from the US to Italy earlier this year and shipped a 10ft container with my little car, some of my belongings that fit in the space after the car was inside, including some small electric appliances. I purchased one Seven Star 500W and one 3000W converter from another brand that weighs a ton (6" x 7.2" x 9.8" and weighs 37 lbs (!!!), and it blew a fuse the first time I tried to connect it, so I haven't touched it since) in order to use US 110V/120V small appliances in Italian 220V environment. After doing much research on which appliances w/ what wattage, Hz, whether AC or DC would actually work, and which items are simply not compatible, I sold my bigger appliances such as 50" TV, microwave, Kitchenaid stand-up mixer, etc. and decided to trust that converters that I've purchased will save me from purchasing everything brand new. From what I read, the rule of thumb is that the total wattage should be at least double the wattage of the appliance in question. As for testing it, I am not willing to try. Here are the items I've connected to the Seven Star 500W converter: - Cuisinart Smart Stick 2 Speed Hand Blender (B00AN9UJ68): works great - 28" Samsung Smart LED TV (UN28H4500): works great; used to watch only Netflix, not cable (incompatible) - Cuisinart Citrus Juicer (CCJ-500): clunky, rotates only one way, doesn't spin unless pressed with a lot of pressure, and final spin feature doesn't work at all - Epson all-in-one inkjet printer (C11CC31201): worked great until I took it off the converter and connected to the outlet with just a plug adapter. There was an explosion. There was smoke. It died. - Nord Stage 88 keyboard (NSTAGE2-EX-88): this is a keyboard instrument costing ~$5k and it works! - JBL Studio Monitors (LSR4328P): these are a pair of large speakers costing ~$1500 that I use with the keyboard and they work! So far, this small 500W converter has been working well for the past 5 months in Italy, so I purchased another one during my last visit to the US.

## Features

- 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)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001TPZ294 |
| Best Sellers Rank | #386,638 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,714 in Power Converters |
| Customer Reviews | 4.2 4.2 out of 5 stars (815) |
| Date First Available | February 23, 2009 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1 pounds |
| Item model number | SF500 |
| Manufacturer | Seven Star |
| Product Dimensions | 8.5 x 3 x 3.5 inches |

## Product Details

- **Brand:** Seven Star
- **Current Rating:** 5 Amps
- **Mounting Type:** Remote Mounting
- **Power Source:** Corded Electric
- **Specification Met:** No

## Images

![Seven Star SF500 500W 110v/220v 220v/110v Step Up/Down Automatic Transformer Adapter - Image 1](https://m.media-amazon.com/images/I/819vqvcE4KL.jpg)

## Questions & Answers

**Q: Is it safe to plug a US power strip into this and use it in China as long as no voltage over 500?**
A: I would say it would be safe. The thing that worries me is your assumption about the voltage. I think it is rated at 500watts and not 500volts. If you had three devices and together they consumed less than 500w, any power strip will serve to provide extra sockets to connect your devices to the transformer. Just beware the overall power to all the connected devices should not exceed 500w. I would cut it out at about 400w max. You can't load equipment to full power output and not have it heat up. Just not safe. Once again this my opinion. Please use your discretion.

**Q: will this work for kitchen aid 325 v in Poland?**
A: Agnieszka did you get this transformer? Does it work fine for the mixer? I m looking to buy it for the same thing 0 Kitchen aid I need to send to Poland. let me know please.

**Q: weight of the item**
A: I have one and just put it on the scale: 1764 grams.

**Q: can i use this in Australia?**
A: Bought the 500 model and it worked perfect in New Zealand,also i purchased a power strip with usb charging port on it. My girlfriend used her curling iron and blow drier with no issues.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great for my 220 Watt blender
*by A***1 on March 22, 2016*

I use a blender that requires 230-240 volts and 220 watts. I connect a voltage converter to it capable of up to 230 watts. I've never had a problem with the converter in the last ~10 years. Then about a few months ago it stopped working. I had already 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. For each jug, the blender would be on for a couple of minutes in both normal and high power modes. Then the blender would be off for a few moments while I pour out the smoothie and refill the jug with new ingredients. 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

### ⭐⭐⭐⭐⭐ My compact, trustworthy converter
*by J***. on September 8, 2016*

I moved from the US to Italy earlier this year and shipped a 10ft container with my little car, some of my belongings that fit in the space after the car was inside, including some small electric appliances. I purchased one Seven Star 500W and one 3000W converter from another brand that weighs a ton (6" x 7.2" x 9.8" and weighs 37 lbs (!!!), and it blew a fuse the first time I tried to connect it, so I haven't touched it since) in order to use US 110V/120V small appliances in Italian 220V environment. After doing much research on which appliances w/ what wattage, Hz, whether AC or DC would actually work, and which items are simply not compatible, I sold my bigger appliances such as 50" TV, microwave, Kitchenaid stand-up mixer, etc. and decided to trust that converters that I've purchased will save me from purchasing everything brand new. From what I read, the rule of thumb is that the total wattage should be at least double the wattage of the appliance in question. As for testing it, I am not willing to try. Here are the items I've connected to the Seven Star 500W converter: - Cuisinart Smart Stick 2 Speed Hand Blender (B00AN9UJ68): works great - 28" Samsung Smart LED TV (UN28H4500): works great; used to watch only Netflix, not cable (incompatible) - Cuisinart Citrus Juicer (CCJ-500): clunky, rotates only one way, doesn't spin unless pressed with a lot of pressure, and final spin feature doesn't work at all - Epson all-in-one inkjet printer (C11CC31201): worked great until I took it off the converter and connected to the outlet with just a plug adapter. There was an explosion. There was smoke. It died. - Nord Stage 88 keyboard (NSTAGE2-EX-88): this is a keyboard instrument costing ~$5k and it works! - JBL Studio Monitors (LSR4328P): these are a pair of large speakers costing ~$1500 that I use with the keyboard and they work! So far, this small 500W converter has been working well for the past 5 months in Italy, so I purchased another one during my last visit to the US.

### ⭐ Review
*by C***E on March 11, 2016*

La corriente transformada de 220v cambiaba sola a 110v y se me pudrio mucha comida en la heladera por eso. 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.

## Frequently Bought Together

- Seven Star SF500 500W 110v/220v 220v/110v Step Up/Down Automatic Transformer Adapter
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- Mackie DLM8 2000W 8-Inch Powered Loudspeaker

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-03-20*