Features: *Special attention: the maximum power of the transformer cannot exceed 10W. Input voltage: 110V 220V 50Hz (Red), Output voltage: 9V (Blue). The input line is two red lines, and the output line is two blue lines. This transformer is only used for AC to DC. *Product name: Power Transformer, Structure: single phase transformer. *Wide range of uses: Electric welding machine, power transformers can be used in voltage transformation occasions such as audio and lighting power supplies. *Fine workmanship and good performance, Easy to use, Long service life. *Material: Aluminum + Copper, Input: AC 220VAC 110V, AC Output: 9V, Working frequency: 50HZ, Relative humidity: ≤90%, Ambient temperature: -5℃~+40℃, Quantity: 1pcs. Specifications: *Part Name:Power Transformer *Material:Aluminum + Copper *Size:100*50*50 mm *Color:As shown in the figure Package Content: 1 * power transformer Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. Ac110-9Vac220-9V Spot Welding Machine Power Transformer For Ny-D01 Control Made of high quality material, durable and practical to use. Perfect functions,give you a wonderful experience. Every customer can enjoy 30 days refund or replacement for Damaged/Quality Issues. If you have any questions, please feel free to contact us, we will solve it for you.