Low power consumption (such as 5mm straw hat, 5mm spotlight, 3528 package, etc.). ), about 0.06W W w.

Medium power (such as 8mm straw hat, 10mm straw hat, 5050 packs, etc.). )0.2W-0.5W。

The high-power ones are 1W, 3W, 5W, 10w? 100 watt.

Second, LED lamp bead is the abbreviation of light-emitting diode, which is a popular name.

Third, characteristics

1. voltage: LED bulbs use low-voltage power supply, and the power supply voltage is between 2-4V, which varies according to different products, so it is a better power supply than using high-voltage power supply; Safer power supply, especially suitable for public places;

2. Current: The working current is 0- 15 mA, and the brightness changes with the increase of current.

3. Efficiency: Compared with incandescent lamps with the same light efficiency, the energy consumption is reduced by 80%.

4. Applicability: Very small, each unit LED chip is 3-5mm square, so it can be made into devices with various shapes and is suitable for changing environments.

5. Stability: 654.38+100000 hours, and light attenuation is 50% of the initial value.

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

7. Environmental pollution: no harmful metal mercury.

8. Color: the color can be changed by changing the current, and the energy band structure and band gap of the material can be easily adjusted by chemical modification of light-emitting diodes, so as to realize multi-color emission of red, yellow, green, blue and orange. For example, an LED that is red at low current can turn orange, yellow and finally green with the increase of current.