Specifications:Product Name: Electronic Voltage StabilizerInput Voltage: AC220V~250V (US standard plug: AC100V~120V)Output Voltage: AC0-220V (adjustable) / US Plug: AC0-100VMaximum Power: 4000W (load power: 2000W)Maximum Current: 15A (US Plug) / 10A (EU Plug)Product Size: 120mm x 65mm x 55mmMaterial: ABS plastic shell, thickened phosphor bronze internal partsPlug Types: EU, USFeatures:1.Wide Compatibility: Supports speed adjustment for fans, brushed motors, and tools without speed gears. Can also adjust temperature on electric stoves, heating rods, and similar appliances. Does not support devices with circuit board or advanced electronics.2.Precision Control: Incorporates a voltage adjustment knob with LED digital display for real-time monitoring. Offers high accuracy with control precision reaching 1 volt.3.Robust Craftsmanship: Designed with a flame-retardant, insulated ABS plastic casing that resists deformation under high temperatures. Thickened phosphor bronze interior enhances product reliability over time.4.Safety Features: Built-in overload and short circuit protection automatically cuts off power when current exceeds 15 amps to Protect both the controller and connected devices.5.Portability and Convenience: Includes a rear hook for easy hanging on tool bags. Plug-and-play functionality simplifies operation for user-friendly control in various scenarios.Package Included:1 x Speed Controller