| 摘要 |
<p>PROBLEM TO BE SOLVED: To always display whether a power source is currently supplied from the outside or not, and the situation currently situated for a lamp lighting switch, each kind of situation. SOLUTION: Whether a power source is currently supplied to a luminaire 1 from the outside is always displayed by a current carrying condition display part 7. A condition as to how a switch part 3 for lighting a lamp is currently kept is always displayed on a switch condition display part 6, for every kind of conditions, by a power source from a power source part 8 for switch condition display made chargeable by the power source from the outside. Thereby, in order to keep the luminaire 1 in a desired on/off condition, numbers of operations of the switch part 3 for lighting a lamp or a wall switch can be kept to necessary minimum.</p> |
