Incandescent lamps, energy-saving lamps, and LED lamps all have their own merits, and there is no absolute good or bad!
In our daily life, we all use a variety of lamps and light sources, such as incandescent lamps, energy-saving lamps, and LED lamps. They can be used for direct lighting or as light sources for lanterns (such as chandeliers and ceiling lamps). wait). Due to the relatively advanced technology of LED lamps and the low energy consumption of energy-saving lamps, in the eyes of many people, "outdated" lamps such as incandescent lamps are basically out of the scope of purchase.
1) In fact, this is not the case. Taking these three types of lamps as examples, they actually have their own advantages and disadvantages, even incandescent lamps with relatively backward technology. Below, let's take a look at the advantages and disadvantages of each of the three:
Let's talk about incandescent lamps first:
Many people don't know that incandescent lamps are actually the electric light source closest to natural light. Their color temperature is usually between 2700K and 4000K, which is easier for the human eye to accept. Moreover, since the grid frequency of incandescent lamps is 50HZ, which is much higher than the reaction speed of the human eye, and the filament has a period of inertia to cool down after being ignited, so when the grid is stable, the flicker is low, even Can be ignored.
Therefore, the advantage of incandescent lamps is good color rendering (that is, they can better restore the true color of objects, and theoretically can restore it 100%). The disadvantages are that they consume electricity, have low photoelectric conversion efficiency, and have a short lifespan.
What needs to be explained is that halogen lamps (the halogen lamps commonly used in car lights) are actually a variant and upgraded version of incandescent lamps. That is, the vacuum bulb is filled with halogen gas, thereby realizing the tungsten halogen cycle between the filament and the gas, greatly extending the life of the filament, so that it achieves the fusion of high color rendering and long life.
2)Let's talk about energy-saving lamps:
Energy-saving lamps are CFLs. They are actually a variant of fluorescent lamps, also called compact fluorescent lamps. Therefore, in this article we will discuss fluorescent lamps separately. It can be made into a light source with any color temperature value and high color rendering. Moreover, due to the glow effect of the phosphor, the stroboscopic value is very low.
Therefore, the advantages of energy-saving lamps are high light efficiency and low energy consumption. For example, to achieve the same illumination, incandescent lamps require 60W, while energy-saving lamps only require 11W. And the color rendering of energy-saving lamps from regular manufacturers and brands can reach above 80. The disadvantage is that the fluorescent tubes of energy-saving lamps are filled with mercury vapor, and the environmental protection issues in manufacturing and recycling have not yet been well solved.
It is worth mentioning that energy-saving lamps are already cost-effective light sources that are relatively easy to buy on the market.
3) Finally, let's talk about LED lights:
Due to different light-emitting principles, LED light sources completely eliminate stroboscopic and have very high light efficiency (that is, electro-optical conversion ratio) and the potential to pursue higher light efficiency. Its advantages are small size, no flicker, no UV, and high light efficiency. Usually the color rendering of mid-to-high-end LED products exceeds 80, and some can even reach 95. Moreover, most LED lamps have a long service life.
In terms of shortcomings, the current market price is relatively high (driven by profits, there are naturally more fake and shoddy products), and the country has not yet specified clear standards for it, making the entire LED market a mixed bag, and ordinary consumers have certain risks when purchasing. .
The above three types of lamp light sources are all commonly used by us in daily life. Each has its own advantages and disadvantages, and there is no absolute good or bad.
However, when purchasing, we must choose lamps produced by regular manufacturers and brands. We must not be greedy for cheap, save trouble, and choose products from three-free manufacturers. The result is that the lighting effect is poor in the light case, and has a certain impact on health and personal safety in the serious case.
Postscript: Lighting design is not about choosing lights. It is a job that is both technical and artistic. If you really don't have the time and professionalism to design lighting, you might as well find a lighting designer!
