The Hung Hom Student Halls of Residence plans to change the fluorescent tubes in the bed rooms from traditional ones (36W) to LED (14W) this summer. In addition, there are plans to replace the current traditional fluorescent tubes (18W) in the staircases with LED tubes with motion sensor inside (7W when motion is detected and 2.5W if not) when they burn out. LEDs contain no harmful mercury and use less energy to produce the same light output. This lighting arrangement will help reduce negative environmental impacts and offer significant energy saving.