Phase : NONEis_customized : YesCertification : NONECoil Number : AutotransformerCoil Structure : Toroidalfeature 1 : 110 v transformer for 220 vfeature 2 : step down transformer 220v to 110vfeature 3 : 220 to 110 voltage converterfeature 4 : qualitySpecification:1. Input: AC220-240V2. Output: AC100-120V3. Power: 500W (suitable for appliances below 250W)4. Size: 16*12* 7cm5. Frequency: 50-60Hz6. Net weight: about 1.6kgFeature Scope of application:suitable for scientific research equipment such as coffee machine, soybean milk machine, microwave oven, rice cooker, etc.Uses:Transformer can be used from 220v to 110v but cannot exceed rated power. When choosing a transformer, please pay attention to the size of the electrical power you useNote:Please power on the transformer for the first time for 5 minutes and observe that the transformer light is on. After there is no abnormal noise, connect it to your electrical appliance (in order to check whether the express has broken the interior). There is a hole on the back of the transformer that can be hung. To prevent water ingress, the transformer can be hung in a dry place with nails.Package Included:1 x 220V To110V Voltage ConverterDear buyers, we appreciate your business, if you are satisfied with our service,please leave us a positive feedback and rate the details of the transaction (Detailed Seller Ratings) with a"PERFECT 5 STARS".If you have any problems, broken, quality problems, please don't worry, and don't leave bad feedback.Please send us an email first, we will reply you as soon as possible, please allow us to respond within 12 hours.We understand your mood, and will provide you with the best solution for your problem,please give us the opportunity to solve the problem,For any case,please feel free to come to us,we are always here.look forward to and thank you for your trust.