What are the characteristics of led?

Light emitting diode (led) has the following characteristics:

1, safe voltage

LED uses low-voltage power supply, the power supply voltage is between 3-24V DC, which is safer than using high-voltage power supply, especially suitable for public places.

2. Energy saving model

The energy consumption is about 80% lower than that of incandescent lamps with the same light efficiency and about 40% lower than that of energy-saving lamps.

3, strong applicability

Small size, can be made into various shapes of devices, suitable for changing environments.

4. Fast response time

The response time of incandescent lamp is millisecond, and that of LED lamp is nanosecond.

5, a variety of colors

The LEDs are red, yellow, green, blue and orange. The working voltage of red light tube is small, and the working voltages of red, orange, yellow, green and blue light emitting diodes with different colors increase in turn.

6. Low price

The price of LED is becoming more and more popular. Because of the power-saving characteristics of LED, it will be used in more and more places.

Extended data

Classification of light-emitting diodes

Light-emitting diodes can also be divided into ordinary monochromatic light-emitting diodes, high-brightness light-emitting diodes, ultra-high-brightness light-emitting diodes, color-changing light-emitting diodes, flashing light-emitting diodes, voltage-controlled light-emitting diodes, infrared light-emitting diodes and negative resistance light-emitting diodes.

There are two LED control modes: constant current and constant voltage, and there are many dimming modes, such as analog dimming and PWM dimming. Most LEDs are controlled by constant current, which can keep the LED current stable and not easily changed by VF, and can prolong the service life of LED lamps.

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