The solution enables school staff to adjust classroom lighting and temperature of air-conditioning anytime, anywhere via mobile phones, thereby creating a comfortable campus environment conveniently and quickly. Utilising cloud-based technology connected via the 5G network, devices can be switched on and off as needed, contributing to energy saving. Compared to when the school was not using the solution, a school can save up to 30% on electricity and can monitor energy usage data in real time, helping to establish a green campus.