What is the principle of the magnetic ring dimming? What's the difference between a regular flashlight?
There are three kinds of LED dimmers Pulse Width Modulation (PWM) Digitizing the power source and controlling the air ratio of the square wave to achieve the goal of controlling the current. Constant flow power control The analog linear technology can easily adjust the size of the current. Group control Multiple LED groups are grouped and controlled using simple pacers.
?no matter how to control current can be changed to touch type button Switch, Tact Switch) or a separate packet Switch (e.g., grouping, remote controller) to control the lights. The quality is reliable and the service life is much longer. It is necessary to use adjustable resistance to adjust the light of the light, and it is recommended to use high quality adjustable resistance (usually a few yuan to 10 yuan).
The two methods can be controlled with adjustable resistance knobs. Due to the technical maturity of PWM modules, the cost is reduced. It is difficult to determine the flow of controls in terms of price. But the adjustable resistor itself is not a reliable component. Often because the dust enters or the manufacturing process is not tight, when operating adjustable resistance, there will be a sudden and empty failure, the light source will flash. This is less obvious in PWM than in the case of linear technology.
