Why are LED light sources powered by constant current?
Because of the constant current power is 20mA high power 1W 350mA good design is not all the constant current is constant as you have enough but the lamp voltage to current will be large on many parallel pipe soft light is to do so is made of 24V
Because when working with a LED lamp, with the working time, fever, reducing resistance, if the component is the constant voltage power supply, the electric current will increase, and great instability, and influence the life of lamps,,Constant current drive power, the current will not change, so that the whole light life and stability is better ~!
When electrons and holes are combined, they can radiate visible light, so they can be used to make light-emitting diodes. In circuits and instruments, as an indicator, or in combination with text or digital display. GaAs diodes glow diode gap, green silicon carbide, yellow light diode, light emitting diode gan. Because of the chemical properties and organic light-emitting diode OLED and inorganic light-emitting diode LED.
Because the current stable constant current drive power, LED lights for long time work, not because of work elements in heating resistance decreased LED lamp burned out.Light emitting diodes, referred to as LED. Made from compounds containing gallium (Ga), arsenic (As), phosphorus (P), nitrogen (N) and so on.
