What key data should be referred to when choosing a classroom special lamp
If the classroom lighting we use is to have a good lighting effect, we must not only ensure that the selected lighting fits the environment in which it is used, but also its design and layout must be scientific and reasonable. In this way, students will not feel eye fatigue when studying in the classroom, and can protect their eyes. So what key data should we refer to when choosing a special classroom lamp? Let's take a look now!
Efficiency: That is, the percentage of the luminous flux emitted by the special lamps in the entire classroom to the luminous flux emitted by all the light sources of the lamps. We can see whether it is energy-saving through the efficiency of the lamps. Generally speaking, the higher the efficiency of the lamp, the more effectively the luminous flux of the light source can be used; on the contrary, the lower the efficiency, the lower the energy utilization rate.
Light distribution shape: Generally, small grid lamps are cosine light distribution. The luminous flux of this kind of lamps is more concentrated under the lamp, and the intensity of the light emitted to the side is very low. If you want to achieve the ideal lighting effect, you can only increase the number of lamps used. That's it. In addition, there is a lamp with a larger grid, and its light distribution shape is batwing light distribution. The strong light of this type of lamp is in the direction of 45°, which can make the illumination uniformity in a larger area reach a higher level.
Glare quality level: small grille lamps can generally reach A level when 500lx≤using illuminance≤1000lx, while large grid lamps mostly reach A level when 300lx≤using illuminance≤500lx. It can be seen that small The glare quality level of grille lamps is generally better than that of large grille lamps.
Classroom special lamps commonly used lamps include large grille lamps and small grille lamps. The comparison of the above parameters shows that both have their own unique advantages. Therefore, we can choose the appropriate lamp according to the actual use.
