What is the lighting principle for LED lights?
Constant current power control The analog linear technology can easily adjust the size of the current.
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 lighting. The quality is reliable, much longer service life. It is necessary to do with adjustable resistance of lighting, suggest using high quality of the adjustable resistance (usually a few yuan to 10 yuan).
?The group control Multiple LED groups are grouped and controlled using simple pacers. Above 1.2. The two methods can be made no adjustable resistance knob control. As a result of the PWM module technology mature, cost reduction. It is difficult to judge from the aspects of price is to use of what way curtains. However, adjustable resistance itself is not a very reliable components. Often because of dirt to enter or not manufacturing process, the operating adjustable resistance with instantaneous jump empty fault, the light will flash. The flashing in PWM mode is not obvious, in the case of using linear current technical regulation more apparent.
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.
