What are the advantages and disadvantages of traditional fluorescent lamps? What's the difference between eye protection panel lamp and fluorescent lamp?

In the past, traditional fluorescent lamps were mainly used in classrooms and other places, with high light efficiency and low price, but they would stimulate the eyes to produce glare. Next, Bian Xiao will share with you the advantages and disadvantages of traditional fluorescent lamps and the differences between eye protection panel lamps and fluorescent lamps.

1. What are the advantages and disadvantages of traditional fluorescent lamps?

Advantages of traditional fluorescent lamps

1, high light efficiency. The luminous efficiency of fluorescent lamps is very high, as high as 104 lumens/watt. When you need high ambient illumination, you can choose this efficient light source.

2, the lumen maintenance rate is high, and the light attenuation is small. Assuming that the life accumulation of fluorescent lamps has reached 8000 hours, some fluorescent lamps with good quality can still maintain more than 90% luminous flux output; Even if the quality is poor, it can reach 80% luminous flux output. Incandescent lamps and halogen lamps can't do this.

3, a variety of color temperatures to choose from. Fluorescent lamps generally have four common whites: warm white (3000k), white (3500k), cold white (4000k) and sunlight (6500k). These different color temperatures depend on phosphors with different colors on the tube wall.

4. Long service life, up to 12000 hours.

5. The procurement cost is low. Fluorescent lamps are generally inexpensive and are substitutes that can be bought everywhere.

Disadvantages of traditional fluorescent lamps

It is huge and can only be used for basic lighting. Due to its luminous principle, fluorescent lamps must have a certain length of pipe diameter. Therefore, the lamp body is relatively large, and the design of the lamp is difficult. Generally, it can only be used for basic lighting, not as a accent lighting.

The color development is average. The display index of fluorescent lamps is good or bad, and its color rendering is based on the types of phosphors. If the phosphor in the lamp is five primary colors, the display index can reach 90+ (but the price is more expensive).

Dimming is difficult. Fluorescent lamps can be dimmed, but the control technology is much more complicated than incandescent lamps and requires special driving appliances.

Strobe. This is the fatal flicker of fluorescent lamps. Of course, all gas discharge lamps have stroboscopic phenomenon, which is caused by the periodic change of current.

Electromagnetic interference. Because there are electrical appliances in the gas discharge lamp, there will be some electromagnetic interference more or less.

2. What's the difference between eye protection panel lamp and fluorescent lamp?

Fluorescent lamps are basically cylindrical in shape and contain a small amount of mercury. When the power supply is turned on, the filament current will generate electrons, which will increase the temperature of the lamp and evaporate mercury to ionization. What is invisible when discharging is the fluorescent powder irradiated by ultraviolet rays on the wall of the lamp tube, which makes the lamp tube emit different visible light. When fluorescent lamps emit light, most of the energy is converted into heat energy and a small part into visible light, so the conversion efficiency is low. The double-headed fluorescent lamp commonly used in schools will appear blackheads at both ends after a long time of use, and the illumination will decrease.

Eye protection panel lamp is a solid semiconductor device, which uses diodes to emit light. It can directly convert current into light with high conversion efficiency, so it is more energy-saving. In order to save energy and protect the environment, more and more eye-protection panel lamps will replace fluorescent lamps.

Because light can irritate eyes, traditional fluorescent lamps are gradually being replaced by eye protection lamps. Eye protection lamp can solve the stroboscopic problem of traditional fluorescent lamp. Everyone should try to choose eye protection lamps when purchasing lamps.