ITEM NAME:6000W 220V AC SCR Motor Speed Controller Module Voltage Regulator Dimmer PBX Descriptio n Specifications: Product Name: 6000W AC Voltage Regulator SCR model: BTA41600B Dimensions: length 130* width 60* height 47mm, knob inner hole 6mm. Without protruding knob, manual measurement, there is error, subject to the actual object Z high power: 6000W (resistive load limit power), the power should be reduced for a long time, it is recommended to use room temperature resistive load within 3000W (key parameters, please pay attention). Efficiency: 90% or more Working voltage: AC 220V Adjusting voltage: AC 0-220V, resistive load.SCR model: BTA41600B. The QUAN technology is now mature. It is a wearing part, but it will not affect the use of the module. The housing regulator has a more secure QUAN, which is more convenient to install and is more suitable for families and factories that are not convenient to install.