LED is a solid semiconductor device that can convert electric energy into visible light, and it can directly emit red, yellow, blue, green, cyan, orange, purple and white light.
First, the characteristics of LED lights
1, high efficiency and energy saving
Only a few kwh of electricity is consumed in 1000 hours.
2. Long service life
The semiconductor chip emits light, has no filament, no glass bubble, is not afraid of vibration and is not easy to break, and its service life can reach 50,000 hours.
Step 3 be healthy
Light health light does not contain ultraviolet and infrared rays and does not produce radiation.
4. Environmental protection:
It does not contain harmful elements such as mercury and xenon, which is beneficial to recycling and will not produce electromagnetic interference.
5. Protect your eyesight
DC Avenue, no stroboscopic.
6. High luminous efficiency
10% less heated electric energy is converted into visible light.
Second, the comparison between LED fluorescent lamp and ordinary fluorescent lamp
Its advantages are as follows:
1, saving energy.
2. The 2.LED lamp has long service life.
3. Because a single LED is small, it can be made into any shape.
4. The response time of 4.LED lamp is ns (nanosecond), while that of ordinary lamp is ms (millisecond).
Disadvantages are:
1, expensive.
2. There is still a big gap between the universally achievable light efficiency and the theoretical light efficiency.
3. There is still a big gap between the achievable life and the theoretical life (10w hour).
4, there is still a certain amount of heat.
Extended data:
Guide to buying LED lights
1, buy LED lamps with the promise of "three guarantees" and buy lamps with CCC certification mark;
2. See if the LED lamp product identification is complete, and the regular products should be identified;
3. See if the power cord of LED lamp has CCC safety certification mark;
4, check whether the charged body of lamps and lanterns is exposed, the light source is installed behind the lamp holder, and fingers should not touch the charged metal lamp holder;
5. See whether the LED chip orientation is accurate and whether the lens or screen is worn.
Baidu encyclopedia -LED lamp