Flame retardant metal chassis: High temperature resistant, does not deform; metal coating prevents rust, effectively withstands high temperatures and heavy pressure to help eliminate potential safety hazards. Easy to use with infinitely variable speed adjustment for free control without gear restrictions. Back mounting hole design is user-friendly, allowing flat or hanging installation with convenience and flexibility. Suitable for use in household appliances, industrial equipment, scientific instruments, factories, schools, and other electrical applications. Slight color variations may occur due to different production batches and printing fonts; this does not affect functionality. Plug Type: EU Plug, compatible with countries such as Indonesia, Germany, France, Spain, and Italy. Voltage: AC 220V. Color: As shown in photo. Material: Metal. Package Contents: 1 x Adjustable voltage regulator. Please note: Other items not included. Due to lighting and display differences, the actual product color may vary slightly from the image. Measurement error allowed within +/- 1-3 cm.