Specification: Condition: Brand New Item Type: Speed Controller Model: HR-8A-1 Material: ABS Color: As shown in the picture Size: Approx.13.3x8x7cm / 5.2x3.1x2.8in Weight: Approx.13000g/458.6oz Plug&Voltage: UK Plug 220V-240V Frenquency: 50Hz Maximum Current: 8A Package List: 1 x Speed Controller 1 x Instruction Manual Note: 1. Please allow 1-2cm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 3 Speeds: One control switch for 3 settings, speed control dial to control variable speed: Low, Medium or High speed. Adopts electronically controll operating speed of use equipment , flow rate and adjustment of brightness. Durable and Strong Material: Electronic fan speed controller is made of high quality materials, flame retardant, no deformation, durable and long service life. Ease of Use: The router fan variable speed controller has compact size, light weight, practical and convenient to carry. Built-in grounded plug for safe operation with all inline fans. Wide Range of Applications: Widely used for adjusting speed of lighting, fan, power tools, massager, pump, etc. Easy to operate, convenient to use, it is a great replacement for broken ones. Stable Features: Strictly comply with product production standards, professional manufacturing, fine workmanship, reliable quality, stable performance, safe and reliable, worthy of your trust.