| 摘要 |
PROBLEM TO BE SOLVED: To provide a marker light that can be reduced in size and also reduced in power loss, and furthermore, can efficiently operate a heater for dew condensation prevention and snow melting.SOLUTION: A marker light includes a shunt device 101 that is provided on the input side of a rectifier 110 and shunts current that is excessive for lighting-up of a solid luminous element 140, of current output from an AC constant current power supply device 1, and a heater driving device 102 that operates when the current flowing in the shunt device 101 exceeds a predetermined value, shunts part of output from the AC constant current power supply device 1 to supply power to a heater 107. |
