省電燈泡的形狀? - 居家
By Yedda
at 2010-05-01T14:25
at 2010-05-01T14:25
Table of Contents
目前省電燈泡有三種形狀,球形、短管、螺旋狀,球形效率最差這公認的。
朋友說燈管越歪曲效率會差,可是找了網頁,又有說螺旋狀的效率比短管好。
請問到底是怎樣?價錢來說螺旋狀好像都比較便宜。
--
朋友說燈管越歪曲效率會差,可是找了網頁,又有說螺旋狀的效率比短管好。
請問到底是怎樣?價錢來說螺旋狀好像都比較便宜。
--
Tags:
居家
All Comments
By Irma
at 2010-05-05T18:17
at 2010-05-05T18:17
By Jessica
at 2010-05-07T20:09
at 2010-05-07T20:09
Related Posts
棉褲要怎麼讓他縮水?
By Margaret
at 2010-04-30T15:59
at 2010-04-30T15:59
有關於循環扇
By Poppy
at 2010-04-30T15:13
at 2010-04-30T15:13
漂白水把白衣服漂黃了
By Elizabeth
at 2010-04-30T15:06
at 2010-04-30T15:06
一粒一粒黑黑的東西..是蟑螂大便嗎??
By Quintina
at 2010-04-29T22:55
at 2010-04-29T22:55
請大家分享可以順手做的事情
By Kama
at 2010-04-29T21:45
at 2010-04-29T21:45