Electromechanical clock timer, has lamp thread and lamp holder that are provided with characteristics, and indicator light ensures that light switch is switched on, where clock timer is screwed into lamp holder for start-up operation
摘要
<p>The timer has a lamp thread (2) and a lamp holder (1) that are provided with characteristics. The clock timer has an indicator light (4) to ensure that a light switch is switched on. The clock timer is screwed into the lamp holder for start-up operation.</p>
