1. Voltage: LED lamp bead USES a low-voltage power source, with the power supply voltage between 2-4v, which varies according to the product, so it is driven by a safer power source than high-voltage power source, especially suitable for public places;
2. Current: the operating current is 0-15ma, and the brightness becomes brighter as the current increases
3. Efficiency: the energy consumption of incandescent lamp is 80% lower than that of incandescent lamp with the same luminous efficiency.
4. Applicability: small, each unit LED chip is 3-5mm square, so it can be prepared into various shapes of devices.
5. Work in a volatile environment.
6. Response time: the response time of the incandescent lamp is milliseconds, and the response time of the LED lamp is nanoseconds.
7. Environmental pollution: no harmful metal mercury.
8. Color: the current can be changed by changing the color. Led can easily adjust the band structure and band gap of the material through chemical modification, so as to achieve multi-color luminescence of red, yellow, green, blue and orange. If the LED is red when the current is small, it can turn into orange, yellow and green as the current increases.