1, separate the wires of more than a dozen lights, one in front, one in the middle and one in the back of the classroom, which can be controlled separately;

2. Install solar collectors on the roof or grass of the teaching building to provide energy for the lighting of the teaching building;

3. Use classroom monitoring equipment to manually monitor the switch of classroom lights.

4. Reduce the number of classrooms with lights on at night so that students can concentrate on those classrooms with lights on.

Step 5 use energy-saving lamps