| 摘要 |
PURPOSE:To automatically change the light output by providing a fixture main body with a removable light controller on an illumination opening section, a switch transferred by the fitting or removal of the light controller, and an output circuit transferred with the output to a lamp by the transfer of this switch. CONSTITUTION:A high-frequency lighting device 4 turns on a discharge lamp 3 with an ordinary output when no light controller 6 is fitted. When the light controller 6 is fitted, a transfer switch 7 is transferred, and the high-frequency lighting device 4 turns on the discharge lamp 3 with a large output. Even when the lighting control signal common to multiple lighting fixtures is extracted for control from one terminal unit such as a control terminal unit 14a or when only one light controller 6 is fitted and the output of only one unit is transferred, the output of the high-frequency lighting device 4 can be changed by only fitting the light controller 6 without performing complicated changes. |
