熄灯器 meaning in English

extinguisher
put-outer

Moreover , in giving the device the name " put - outer , " jkr did not concoct a clever name
此外，鉴于这个装置的名字“熄灯器” ， jkr确实是没有编一个好名字。
Could it be that jkr simply chose the name put - outer for other reasons , such as a desire not to reveal immediately that the books involve magic
Jkr简单地选择了熄灯器是不是有其它的原因呢，比如她不想过早地透露出小说涉及魔法？