The SDT series step-up and down transformer is an AC voltage converting device. It is made with windings around an annular iron core, which gives the product low power consumption and high efficiency. Using it converts various network voltages into a general output voltage, ensuring that all electronic units are safe for use within the rated power range.
● Input voltage :AC 1l0V or 220V
● With fuse protector or with over current protector
● Output voltage :AC220V or 110V
It is mainly suitable for 220V or 110V electrical appliances. The output voltage with dual output sockets can be selected Nikko rice cookers, hair dryers, horse figurines, American juicers, speakers and more!

| Product Model | Rated Power | Package Size(mm) |
| SDT-500 | 500W | 445*305*190 |
| SDT-1000 | 1000W | 505*270*225 |
| SDT-1500 | 1500W | 505*315*225 |
| SDT-2000 | 2000W | 355*295*275 |
| ST-100 | 100W | 395*315*225 |
| ST-200 | 200w | 395*315*225 |
| ST-300 | 300w | 355*315*245 |
| ST-500 | 500W | 460*190*245 |
| ST-750 | 750W | 315*220*245 |
| ST-1000 | 1000W | 300*255*215 |
| ST-1500 | 1500W | 300*255*215 |
| ST-2000 | 2000W | 340*255*215 |
| ST-3000 | 3000W | 340*255*215 |
| ST-4000 | 4000W | 405*285*240 |
| ST-5000 | 5000w | 405*285*240 |
| ST-10000 | 10000W | 425*320*300 |
| Place of Origin | Zhejiang, China |
| Brand Name | Zhengxi or ODM & OEM |
| Model Number | DT-3000va |
| Product name | Step up and down voltage transformer/ converter |
| Frequency | 50/60Hz |
| Adjust time | <0.5s(when input voltage has a change of 10%) |
| Color | Black |
| input voltage | 100/110/115/120/200/220/240V |
| output voltage | 240/220/200/120/115/110/100V |
| plug and socket option | yes |
| MCB protection | yes |
| Certification | ISO,CE |
| Input and output display | yes (pointer, LCD,LED) |

① Portable Handle
② Power source
③ 110V Output
④ Cooling Grille
⑤ Circuit Breaker Switch
⑥ Output 220V