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http://indianaquariumhobbyist.com/community/ :: View topic - A Light Calculation Chart
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A Light Calculation Chart
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Adda
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PostPosted: Mon Mar 22, 2010 12:42 am Post subject: Re: A Light Calculation Chart Reply with quote

 @essabee
 awesome  stuff...thank  u  very  much
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raushy
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PostPosted: Mon Mar 22, 2010 1:03 am Post subject: Re: A Light Calculation Chart Reply with quote

 Excellent  work,
 Thanks
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vidhyasagar99
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PostPosted: Mon Mar 22, 2010 10:01 am Post subject: Re: A Light Calculation Chart Reply with quote

 nice,thanks  for  your  effort,  are  they  accurate  low  lit  high  lit,  and  how  do  u  judge  it.
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essabee
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PostPosted: Mon Mar 22, 2010 12:14 pm Post subject: Re: A Light Calculation Chart Reply with quote

                                                   
vidhyasagar99  wrote  (View  Post):                
nice,thanks  for  your  effort,  are  they  accurate  low  lit  high  lit,  and  how  do  u  judge  it.                

 
 Experience  only.  The  words,  low  lit  high  lit,  don't  mean  anything  -  go  to  the  first  post  and  take  the  meaning  from  there.  Remember  always  that  these  are  only  guidelines  and  subject  to  your  ambient  light.
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koushik_man
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PostPosted: Mon Mar 22, 2010 3:44 pm Post subject: Re: A Light Calculation Chart Reply with quote

 Thanks  for  sharing.  It's  really  very  helpful.  Smile
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rupak
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PostPosted: Mon Mar 22, 2010 10:53 pm Post subject: Re: A Light Calculation Chart Reply with quote

 Hi,
 
 Interesting  approach  to  calculating  lighting  needs  for  a  tank   Thumb Up  
 
 wanted  to  know  why  have  you  rated  the  lumens  for  a  T5  HO  lower  as  compared  to  a  regular  T5  ?
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essabee
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PostPosted: Tue Mar 23, 2010 4:27 am Post subject: Re: A Light Calculation Chart Reply with quote

                                                   
rupak  wrote  (View  Post):                
Hi,
 
 Interesting  approach  to  calculating  lighting  needs  for  a  tank   Thumb Up  
 
 wanted  to  know  why  have  you  rated  the  lumens  for  a  T5  HO  lower  as  compared  to  a  regular  T5  ?                

 
 It  is  lumen  per  watt.  The  HO  produces  less  per  watt  but  packs  more  power  in  the  same  size.  There  is  loss  of  efficiency  but  increase  of  total  production  (and  total  consumption)  in  the  same  space.  That  is  the  normal  case  for  all  overdriven  luminaries.
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rupak
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PostPosted: Tue Mar 23, 2010 8:55 am Post subject: Re: A Light Calculation Chart Reply with quote

 Thanks  for  clarifying  ....
 
 but  now  i  am  confused  which  ones  are  better  for  our  use  in  a  planted  tank  the  regulart  T5's  or  the  High  output  ones
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essabee
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PostPosted: Tue Mar 23, 2010 10:54 am Post subject: Re: A Light Calculation Chart Reply with quote

 If  you  have  the  space  (ie.  if  you  can  fit  in  the  normal  fluorescents  in  the  available  space)  use  NO  if  you  need  more  light  but  do  not  have  the  space  for  it  then  use  HO.  Remember  always  that  individual  reflectors  are  better  than  multiple  tube  reflectors.
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garothmaan
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PostPosted: Wed Apr 14, 2010 1:02 pm Post subject: Re: A Light Calculation Chart Reply with quote

 Thanks  maaaaaaan  that  was  very  good  piece  of  information...
 
   if  possible  can  you  add  the  type  of  plants  against  each  enrty
 1.  Low  litr.....  these  plants
 2.  Med  lite....  these  plants.....etc
 
 those  plants  which  are  conventionally  used  and  availabe  and  very  commonly  planted....
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yaza
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PostPosted: Mon Jul 05, 2010 1:31 pm Post subject: Re: A Light Calculation Chart Reply with quote

 Thanks  for  the  handy  info!  Smile
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hrishi007
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PostPosted: Thu Jul 08, 2010 3:51 pm Post subject: Re: A Light Calculation Chart Reply with quote

 very  useful.thanks  Thumb Up
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ASSASSIN
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PostPosted: Wed Jul 28, 2010 10:40 am Post subject: Re: A Light Calculation Chart Reply with quote

 this  is  coool.......
 
 nice  work
 
 edit:  which  one  is  more  efficient  T5  or  T5HO..??  because  when  i  entered  96w  for  my  tank  in  T5  column  it  said  well  lit  but  in  T5HO  it  said  medium  lit..
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raghu1234
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PostPosted: Wed Jul 28, 2010 4:06 pm Post subject: Re: A Light Calculation Chart Reply with quote

 essabee  
 nice  work..
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essabee
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PostPosted: Wed Jul 28, 2010 7:04 pm Post subject: Re: A Light Calculation Chart Reply with quote

                                                   
ASSASSIN  wrote  (View  Post):                
this  is  coool.......
 
 nice  work
 
 edit:  which  one  is  more  efficient  T5  or  T5HO..??  because  when  i  entered  96w  for  my  tank  in  T5  column  it  said  well  lit  but  in  T5HO  it  said  medium  lit..                

 
 T5  converts  more  electricity  into  light  and  is  a  more  efficient  bulb  but  an  equally  powered  T5HO  will  occupy  less  space  but  give  less  light.  
 
 HO  bulbs  are  space  efficient  and  not  output  efficient  and  they  produce  more  heat  too.  Remember  always  the  more  efficient  your  bulb  is;  it  has  less  electricity  left  over  to  convert  into  waste  heat.
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