What's the difference between LED lights and fluorescent lights? Disadvantages of traditional fluorescent lamps.

Fluorescent lamp is a traditional lamp. Compared with LED lamp, it has lower efficiency and shorter service life. Next, Bian Xiao will share with you the differences between LED and fluorescent lamp and the shortcomings of traditional fluorescent lamp.

1.What's the difference between LED lights and fluorescent lights?

1. luminous efficiency: the luminous efficiency of fluorescent lamps is about 55-80lm/W, while the luminous efficiency of LEDs is 100lm/w .. The difference between them is now nearly doubled. And the gap may be even bigger in the future.

2. Efficiency of lamps: The efficiency of lamps mainly refers to the effective light effect, because fluorescent lamps emit light at 360 degrees, and the light emitted in the opposite direction is useless. Therefore, fluorescent lamps usually use white lampshades, which can reflect a considerable part of the backlight back. The light emitted by LED fluorescent lamps is 120 degrees, so almost all the light emitted is effective light.

3. Power supply efficiency: Because lamps need special power supply besides incandescent lamps, the efficiency of power supply also affects the efficiency of the whole lamps.

4. Life span: The life span of a well-designed LED fluorescent lamp can reach 50,000 hours. The life of fluorescent lamps is usually less than 20,000 hours.

5. Lighting principle: The lighting principle of fluorescent lamps is different from that of LED lamps. Fluorescent lighting means that the ballast generates high voltage at the moment of power-on, which excites the discharge between two pins inside the lamp tube, and then excites the fluorescent powder to emit light. This process produces a high fever. LED luminescence is the electron migration inside the semiconductor, which produces luminescence, and the luminescence process hardly produces heat.

6. The principle of light color generation is different: different types of fluorescent powder and gas filled in fluorescent tubes will lead to different light colors. Its technical quality is also very different. Fluorescent tubes are coated with halogen phosphors and filled with argon and krypton argon mixed gas. The light colors of fluorescent tubes are: cold white fluorescent tubes and warm white fluorescent tubes.

Second, the shortcomings of traditional fluorescent lamps

1, poor light quality

(1) The glare of the eyes directly irradiated by light source is serious, which can easily cause teachers' eye fatigue and students' inattention.

(2) High-frequency flash source causes students' eye fatigue and vision decline.

(3) The color rendering index of light source is low, and the spectrum of ordinary fluorescent tubes is incomplete, which will lead to insufficient color and color deviation, which will directly affect children's color discrimination level.

(4) The color temperature of the lights in the classroom is high, and the light source is white. It is very easy to cause students to get excited and tired easily, which leads to long-term myopia.

2. The illuminance distribution is uneven, and the average illuminance and symmetry are not up to standard, which can not meet the requirements of national industry standards.

The effect of traditional fluorescent lamps is not as good as that of current LED lamps, so everyone should try to choose LED lamps when purchasing lamps.