Problems to be resolved in classroom LED lighting

　　1, LED lighting used in the classroom also needs to address the difficulties? What will the future to improve them?

　　How to achieve more precise light distribution, improve the LED lighting system reliability and stability, lower cost LED lights are fully into the classroom lighting problems to be solved. In addition, LED spectra should cause security issues more industry attention. These aspects we need further research and improvement.

　　2, In the expansion of the LED lighting used in classroom experiments, now what has been concluded?

　　Firstly, in terms of psychological experiments and investigation findings showed that students of color temperature preferences are not static, but with the classroom functions, illumination level varies as a basis for classroom lighting color temperature selection is not reliable. Evaluate a light source whether it is a good classroom lighting, in addition to considering the competent student evaluations, student singing time must also be considered in the specific spectral Huang Jing, a large number of cumulative fatigue caused by stimulation of the student's physical health effects.

　　Secondly, depending on the conclusions of efficacy testing is mainly reflected in the following three aspects. First, you should avoid the classroom blackboard general lighting and illumination using the same color temperature; second, whether it is fluorescent or LED group, 4000K recognition rate curve light around the best stability, the highest recognition rate. Showed the best performance of its visual effects; Third, the university classroom in southern China the most commonly used 6500K fluorescent light, the apparent efficacy worst performance, and when the voltage is unstable work surface illumination subtle changes may cause visual working students sudden loss.