我friend話慳電膽用電量仲高過一般電燈膽, 佢好快解釋一次被我聽,但我唔記得左, 究竟係唔係真架?
一個70w既普通電燈膽等於十幾w既慳電膽, 咁樣慳電膽唔係比一般電燈膽用少幾倍電咩?
如果真係用多左電,比多左電費,咁點解仲叫慳電膽?
收錄日期: 2021-04-12 13:30:18
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070320000051KK01605