| 摘要 |
A torch (118) having a lamp (12), a pair of thermistors (134, 136) secured to the outer centre of the lamp (12) and connected to an electric circuit (10), the electric circuit (10) being arranged to switch off the power supply to lamp (12) of the torch (118) when the temperature at the thermistors (134, 136) reaches a pre-determined value. |
