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(#21)
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sidathsaumya sidathsaumya is online now
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05-25-2019, 11:28 AM

bp
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(#22)
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ACHIK ACHIK is offline
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05-25-2019, 11:37 AM

Bump.
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(#23)
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HypermaD2 HypermaD2 is offline
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Up 05-25-2019, 12:58 PM

Quote:
Originally Posted by pavithra_uk View Post
Ai Colour rendering index eka. LED/CFL waladi mekath wadagath


Rending Eka tawa cn ekak..
Mewa serama balanna epaye..

Tikak lokuwata katha karanna wenawa ehenam
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(#24)
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HypermaD2 HypermaD2 is offline
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Up 05-25-2019, 12:59 PM

Quote:
Originally Posted by sinibatta View Post
ඔලුවත් මොකද්ද වුනා. එල එල
Quote:
Originally Posted by rock pora View Post
තව ටිකක් විස්තර කරලා දාහන්කො මචන්
රේප් +++

Ela mchn free welawaka dannam hoda thread ekak
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dabba1983 dabba1983 is offline
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05-25-2019, 02:30 PM

BUMP
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(#26)
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malakadss malakadss is online now
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05-25-2019, 03:39 PM

bump
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cbandara47 cbandara47 is online now
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05-25-2019, 03:47 PM

Thanks mchn bump
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05-25-2019, 03:49 PM

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05-25-2019, 03:55 PM

Quote:
Originally Posted by HypermaD2 View Post
ලූමන්ස් කියන්නෙ වටේටම එලිය විහිදුවන කොලිටි එක මනින ඒකකය.. ( all direction )
Reflect එකක් දාල එක direction එකකට හරවල ගත්තම ඕක වෙනස් වෙනව තවත්..

තව මේක කාමරයකට දාද්දි

Illuminance
Co - efficiency of the Utilization
Maintenance factor
Space to height ratio

මේවත් සලකල බලන්න් වෙනව..

Lighting engineering වලදි electrical efficiency එකට කියන්නෙ efficacy කියල
මේ efficacy එක 1-1.5 අතර තියාගන්න ඕනෙ

මේක සමාන වෙනව මෙහෙම

Efficacy = Luminous flux output of the lamp ( ඒ කිව්වෙ ලූමන්ස් එක) / වොට් එක

මේකෙන් විතරක් ම ගන්න බෑ හරිම අගය..

කලින් තියන ඒවත් සලකල බලන්න ඕනෙ..



මමත් ලාවට කරල තියෙන්නෙ.. මේක ටිකක් ලොකු සබ්ජෙක්ට් එකක්
විස්තර ඇතුව ත්‍රෙඩ් එකක්ම ලියමු නේ.....ඒක හොඳයි.
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(#30)
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sinibatta sinibatta is offline
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sinibatta is a jewel in the roughsinibatta is a jewel in the roughsinibatta is a jewel in the roughsinibatta is a jewel in the roughsinibatta is a jewel in the roughsinibatta is a jewel in the rough
 
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05-26-2019, 09:20 AM

බම්ප්
21 තාමත් මතකයි, කඩු හම්බුනේ කොහෙන්ද කියලත් මතකයි,
පාලකයන්ගේ සිනහවත් මතකයි,මේ සිංහලයගේ රට කියලත් මතකයි.
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