全屋用哂LED照明會不會比用光管更靚聲?作者: hifi-brush 時間: 2010-6-11 21:40
我正想問這問題，剛好我正準備一家hifi房，現成滿屋光管，到時預暫辦法，開hifi時關光管。作者: kk_ho 時間: 2010-6-11 22:22
VERY SPECIAL PRICE TO BUY THIS LIGHT Bulb......................
Only for Vendor.作者: hifi-brush 時間: 2010-6-12 11:13
之前在街問過，價錢貴過儉電胆一倍有多，不知現在多少錢？作者: kk_ho 時間: 2010-6-12 12:46
Some parameter need to consider.
1. lm / watt.
e.g. If the light bulb label is 250lm 5.5W, you can make a simple calculation, around 45lm / watt of this LED.
This is a single dice LED package inside this light bulb.
I found one LED brand in this exhibition, 160lm / watt. (Overdrive 760 lm / watt). You may found this product at the end of 2010.
2. CRI factor (Color reflection index)
Sun light is 100% reference.
This light bulb only claim 75.
What happen is?
Try to use LED lamp bulb project to the "Fruit", you will know what I say.......
100% CRI will result more nature, just like what you see what you get.
75% CRI......... I think you will not interest to buy the "fruit" if you watch that.
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轉用我公司LED光管,效果會更好!
有興趣可pm我!
二年保養!作者: kk_ho 時間: 2010-8-12 19:09
PFC value?
Efficiency?
CRI value?
lu/ watt?
Can export to Japan or not?作者: axgroup 時間: 2011-10-6 23:27
Very good,作者: kwok_sir 時間: 2011-10-11 21:26
Today LED lamp efficiency is same as T5 fluorescent or a bit higher, also using switching
mode power supply technology, no good for Hi Fi. Tungsten bulb or halogen bulb are good, they are not
using switching power supply.
They using direct ac or step down by transformer for 12v lamp, do not buy switching dome step down type
(電子火牛).作者: kk_ho 時間: 2011-10-11 22:12
You may try Samsung AC LED. Direct drive from AC 110V / 220V AC source.