Abstract: The use of high-efficiency LEDs in low-power lighting applications is growing continuously due to new advances in LED features. The lifetime of a low-power fluorescent lamp is around 5000 h.

Victoria line trains ground to a halt on Tuesday after emergency services responded to a casualty on the track. There was no service between Victoria and Highbury & Islington for much of the morning.

Trains in and out of London Waterloo are facing major disruption until the end of the day after a person died at Raynes Park station. National Rail says lines closed between between Surbiton and ...