電價要漲 LED跟省電燈泡誰才省? - 省錢
By Anonymous
at 2012-06-20T17:29
at 2012-06-20T17:29
Table of Contents
有鑑於大家不知道現在燈泡哪個好,因為本身是電機研究所畢稍有研究,
把知道的結果分享給大家,
目前賣場可買到最省電的光源是:日光燈 > 省電燈泡 > LED燈泡 >> 白熾燈泡(鎢絲燈)
大範圍房間照明用日光燈,小範圍照明如桌燈、浴室等可用省電燈泡...
省不省電要看電光轉換效率,用越少瓦特的電 轉出 越高流明的光 表示越省電,
目前日光燈最高約可到 100 lm/w (每瓦特的電產生幾流明的光),
省電燈泡約 60~72 lm/W,從賣場燈泡的規格看起來瓦數越高轉換效率好像越好
(27W轉換效率高)
LED燈泡目前賣場上電光轉換效率最高應該只有 60 lm/W(參考飛利浦今年的產品手冊),
而且因為散熱有瓶頸,目前瓦特數都無法做高,
賣場大約都只能買到8W的,售價卻高得嚇人,
(18W的飛利浦省電燈泡才99元,8W LED燈泡雜牌的也要3~400元,
很多人以為8W LED燈比較省電,問題是它產生了多少光???
不夠的亮度勢必要多點幾顆才能達到相同亮度,
以這個例子來說,LED燈泡買兩顆同時點亮(8+8=16W),亮度還輸省電燈泡,
價錢則是不成比例的高...
飛利浦18W省電燈泡 99元
雜牌LED 8W燈泡2顆 2 X 300元 = 600元 (低估)
就算你能買到同瓦數的LED燈泡和省電燈泡,還是省電燈泡可以幫你節省較多電費,
如果錢太多想贊助LED產業發展倒是可以買幾顆回家裝... XD )
另外,有人說LED壽命長,也只講了一半,LED的壽命跟他的工作溫度有關,
工作溫度每上升攝氏10度C,LED壽命就降低一半!!!
以現在散熱不佳的製程來說,壽命高都只是廠商的廣告台詞,
另外目前LED的演色性也很不成熟,若用於照明,只能說可以看見,
但被照明的東西不會好看,
色彩的還原度不夠,別說這項指標不重要,
若你在室內有拍照需求(ex.家族或朋友聚會),
照片拍出來膚色一片死白(色彩還原度不夠),面無血色、甚至偏綠,
試問這種光源誰會想用?(加上比三波長日光燈管貴到不行的價格...)
LED目前實驗室裡的產品已經有做到 150 lm/W,未來是有可能可以成為照明的主流,
但不是現在~~~
現在LED廠商都透過買新聞來洗社會大眾的腦,騙大家去買LED,
如果要買請過幾年再來買,到時發光效率、演色性和價格都會比較合理,
現在大家不需要去追昂貴的LED燈泡,
至於白熾燈泡,發光效率最差,約 10~20 lm/W,
上述所有燈泡(日光燈、省電燈泡、LED燈)最愛拿來跟他比較,
像是 27W 省電燈泡 = 135W 白熾燈泡
就是說27W的省電燈泡發出跟135W白熾燈泡一樣的光量
很多人光看白熾燈泡這名詞會以為是看起來白白的日光燈,其實差了很多,
白熾燈泡是指鎢絲燈之類的燈泡(很多人家裡神明燈就是用這種),
並非白白的日光燈,日光燈因為這樣背了不少黑鍋,還被許多人換掉 = =
------------------------------------------------------------------------------
過去政府在推省電燈泡的時候沒講清楚,其實日光燈管才是目前最省電的,
選擇日光燈也有些訣竅,越長、越細、三波長燈管、使用預熱式電子安定器的
日光燈越省電,
一支長的40W日光燈比兩支20W的日光燈亮很多,消耗的電量卻一樣,
三波長的燈管不但省電,且演色性好,室內聚會拍照顯得更真實、更好看,
省電燈泡可看成是做成U型或螺旋型的日光燈,發光原理相似,
日光燈分T5、T8、T9,越前面的是越新,含汞量越低,
但省不省電還是要看這日光燈是否是用預熱式電子安定器,
預熱式電子安定器也是日光燈省電的關鍵,同時可增加日光燈的壽命,
相關的網路文章可參考下列網址
http://ahmow.blogspot.tw/2008/10/t5-t8-t9-t85-fluorescent-lamps.html
http://ahmow.blogspot.tw/2008/10/t5-t8-t9-t6-ballast.html
※ 引述《ilanese (打臉就要打很痛才行)》之銘言:
: 目前我在大賣場查到發光效率最佳的是億光的8W LED燈泡:810 lm,
: 平均為101.25 lm/W(流明/瓦特)。
: 而億光給-4賣的8W LED燈泡:750 lm。
: 所以買LED燈泡時,要注意包裝上的標示。當然了,前提是包裝上的
: 標示沒作假,才有意義。 XD
: PS:至於演色性又是另一個問題了。
--
把知道的結果分享給大家,
目前賣場可買到最省電的光源是:日光燈 > 省電燈泡 > LED燈泡 >> 白熾燈泡(鎢絲燈)
大範圍房間照明用日光燈,小範圍照明如桌燈、浴室等可用省電燈泡...
省不省電要看電光轉換效率,用越少瓦特的電 轉出 越高流明的光 表示越省電,
目前日光燈最高約可到 100 lm/w (每瓦特的電產生幾流明的光),
省電燈泡約 60~72 lm/W,從賣場燈泡的規格看起來瓦數越高轉換效率好像越好
(27W轉換效率高)
LED燈泡目前賣場上電光轉換效率最高應該只有 60 lm/W(參考飛利浦今年的產品手冊),
而且因為散熱有瓶頸,目前瓦特數都無法做高,
賣場大約都只能買到8W的,售價卻高得嚇人,
(18W的飛利浦省電燈泡才99元,8W LED燈泡雜牌的也要3~400元,
很多人以為8W LED燈比較省電,問題是它產生了多少光???
不夠的亮度勢必要多點幾顆才能達到相同亮度,
以這個例子來說,LED燈泡買兩顆同時點亮(8+8=16W),亮度還輸省電燈泡,
價錢則是不成比例的高...
飛利浦18W省電燈泡 99元
雜牌LED 8W燈泡2顆 2 X 300元 = 600元 (低估)
就算你能買到同瓦數的LED燈泡和省電燈泡,還是省電燈泡可以幫你節省較多電費,
如果錢太多想贊助LED產業發展倒是可以買幾顆回家裝... XD )
另外,有人說LED壽命長,也只講了一半,LED的壽命跟他的工作溫度有關,
工作溫度每上升攝氏10度C,LED壽命就降低一半!!!
以現在散熱不佳的製程來說,壽命高都只是廠商的廣告台詞,
另外目前LED的演色性也很不成熟,若用於照明,只能說可以看見,
但被照明的東西不會好看,
色彩的還原度不夠,別說這項指標不重要,
若你在室內有拍照需求(ex.家族或朋友聚會),
照片拍出來膚色一片死白(色彩還原度不夠),面無血色、甚至偏綠,
試問這種光源誰會想用?(加上比三波長日光燈管貴到不行的價格...)
LED目前實驗室裡的產品已經有做到 150 lm/W,未來是有可能可以成為照明的主流,
但不是現在~~~
現在LED廠商都透過買新聞來洗社會大眾的腦,騙大家去買LED,
如果要買請過幾年再來買,到時發光效率、演色性和價格都會比較合理,
現在大家不需要去追昂貴的LED燈泡,
至於白熾燈泡,發光效率最差,約 10~20 lm/W,
上述所有燈泡(日光燈、省電燈泡、LED燈)最愛拿來跟他比較,
像是 27W 省電燈泡 = 135W 白熾燈泡
就是說27W的省電燈泡發出跟135W白熾燈泡一樣的光量
很多人光看白熾燈泡這名詞會以為是看起來白白的日光燈,其實差了很多,
白熾燈泡是指鎢絲燈之類的燈泡(很多人家裡神明燈就是用這種),
並非白白的日光燈,日光燈因為這樣背了不少黑鍋,還被許多人換掉 = =
------------------------------------------------------------------------------
過去政府在推省電燈泡的時候沒講清楚,其實日光燈管才是目前最省電的,
選擇日光燈也有些訣竅,越長、越細、三波長燈管、使用預熱式電子安定器的
日光燈越省電,
一支長的40W日光燈比兩支20W的日光燈亮很多,消耗的電量卻一樣,
三波長的燈管不但省電,且演色性好,室內聚會拍照顯得更真實、更好看,
省電燈泡可看成是做成U型或螺旋型的日光燈,發光原理相似,
日光燈分T5、T8、T9,越前面的是越新,含汞量越低,
但省不省電還是要看這日光燈是否是用預熱式電子安定器,
預熱式電子安定器也是日光燈省電的關鍵,同時可增加日光燈的壽命,
相關的網路文章可參考下列網址
http://ahmow.blogspot.tw/2008/10/t5-t8-t9-t85-fluorescent-lamps.html
http://ahmow.blogspot.tw/2008/10/t5-t8-t9-t6-ballast.html
※ 引述《ilanese (打臉就要打很痛才行)》之銘言:
: 目前我在大賣場查到發光效率最佳的是億光的8W LED燈泡:810 lm,
: 平均為101.25 lm/W(流明/瓦特)。
: 而億光給-4賣的8W LED燈泡:750 lm。
: 所以買LED燈泡時,要注意包裝上的標示。當然了,前提是包裝上的
: 標示沒作假,才有意義。 XD
: PS:至於演色性又是另一個問題了。
--
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省錢
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