2. Current: The working current is 0-15mA, and the brightness becomes brighter as the current increases.
3. Efficiency: 80% less energy than incandescent lamps with the same light efficiency.
4. Applicability: Very small, each LED chip is 3-5 mm square, and can be made into various shapes of devices, suitable for changing environments.
5. Response time: The response time of incandescent lamps is in milliseconds, while the response time of LED lamps is in nanoseconds.
6. Environmental pollution-free: no harmful metal mercury.
7. Color: Change the current to change the color. Light emitting diodes can easily adjust the energy band structure and band gap of materials through chemical modification to achieve red, yellow, green, blue, and orange multicolor luminescence. For example, LEDs that turn red when the current is low will turn orange, yellow, and finally green as the current increases.
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