... to “Continue ON” position.6.It can also be used in closet, cabinet, stairway, corridor, bedroom, washroom, cellar ... 4.if no electricity power,it could be used for cook for a dinner for its reserving ... ,wall and ceiling wall even any places in car. 8.fixed in walkway,corridor,stairs,basement.no need ... fixed in oil reservoir,warehouse,material section or used in someplace without 220v AC current. 10.it ...