flame retardant metal chassis: high temperature flame retardant not deformed, metal paint does not rust effectively prevent high temperature, anti-heavy pressure, to eliminate potential safety hazards! Easy to use, infinitely variable speed adjustment, free control adjustment, no gear restrictions The back of the mounting hole design is very humanized, flat, hanging convenient and free The product can be widely used in household appliances, industrial appliances, scientific experimental instruments, factories, schools and other electrical equipment. There is a slight color difference in the shipment, the factory batches are different, the printing fonts are different, it does not affect the use Plug Type: US Plug, it applies to Canada, India, Mexico, Thailand, Taiwan, the United States, the Philippines and so on. Plug Type: EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on. Voltage: AC110V/AC220V Colour:Photo Color Material:Metal Package Contents: 1x Adjustable voltage regulator Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.