About the dimmer
An electrical device that changes the luminous flux and illuminance level of a light source in an illumination device. A large capacity and a system is called a dimmer. Its basic principle is to change the current effective value of input light source to achieve dimming purpose.
Dimmer: the English dimmer. dimmer is designed to adjust the brightness of different lights. By reducing or increasing the RMS voltage, the average power of the lamp generates different intensity of light output. Although variable voltage devices can be used for various purposes, this regulation is designed to control lighting.
The range of dimmers is: small unit size normal light switch for home lighting, high power unit used for large theater or building lighting facilities. Small unit dimmers are usually directly controlled, while high power units use remote control systems. Modern professional dimmer generally adopts digital control system like DMX or Ethernet.