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http://indianaquariumhobbyist.com/community/ :: View topic - What CCT is better?
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What CCT is better?

 
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What combination of Philips PLL lights are better for a Planted Tank?
Mixture of all the 3
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2 Cool white & 1 cool day light
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All 3 Cool White
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1 Cool White & 2 Cool Day Light
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Total Votes : 0

Author Message
Saugata
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Joined: May 19, 2005
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PostPosted: Fri Jan 20, 2006 12:55 pm Post subject: What CCT is better? Reply with quote

 Dear  All,
 
 This  is  for  all  Planted  Tank  experts.  Generally  the  Philips  PLL  lights  have  3  options:-
 
 (1)  Cool  Day  Light  (6500  K  CCT)
 (2)  Warm  White  (2700  K  CCT)
 (3)  Cool  White  (4000  K  CCT)
 
 What  combination  is  the  best  suited  for  Planted  Tanks?
 
 
 Regards,
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aquascapes
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Joined: Dec 19, 2005
Posts: 2753
Location: Surat, Gujarat

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PostPosted: Fri Jan 20, 2006 5:58 pm Post subject:  Reply with quote

 Sorry  Sir,
 I'm  not  an  expert  at  this  but  since  you  asked  -  I  have  never  tried  my  hand  at  the  PL  lamps  for  my  planted  tanks  -  all  I  use  is  a  couple  of  tubelights
 1)  40w  Philips  Trulite  (red)
 2)  36w  Osram  Lumilux  plus
 Never  needed  to  replace  them!
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nag
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PostPosted: Fri Jan 20, 2006 8:04 pm Post subject:  Reply with quote

 Hi  Saugata:
 
 Cool  Day  Light  is  the  best...
 Bye,
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joyban
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PostPosted: Fri Jan 20, 2006 10:26 pm Post subject:  Reply with quote

 Philips  TL-D  90  De  Luxe  Pro  Specs:-  Source  Philips  Website
 http://www.prismaecat.lighting.philips.com/LightSite/Whirlwind.aspx?eca=LEPPLG&cpf=GBEPEN&stg=ACT&lan=EN+&ecu=LMP%7cPHL%7cEP&nav_key=1148&t=2&tree=0&scr_md=1111&nav=Null&loc=Null&leftnav=2_1_1_5
 
 TL-D  90  De  Luxe  Pro  18W/930  SLV  -  T8  
 
 Colour  Rendering  Index[Ra8  ]=  92  
 Colour  Designation  =  Warm  white
 Colour  Temperature[K  ]  =    3000K
 Lamp  Luminous  Flux  EM  @  18W[Lm  ]=    1100
 Lamp  Luminous  Flux  EM  @  36W[Lm  ]=    2700
 Lamp  Luminous  Flux  EM  @  58W[Lm  ]=    4350
   
 Spectral  Power  Distribution  TL-D  90  De  Luxe  Pro/930  :-
 
 
 TL-D  90  De  Luxe  Pro  18W/940  SLV  -  T8  
 
 Colour  Rendering  Index[Ra8  ]=  91
 Colour  Designation  =  Cool  White
 Colour  Temperature[K  ]  =      4000K
 Lamp  Luminous  Flux  EM  @  18W[Lm  ]  =    1200
 Lamp  Luminous  Flux  EM  @  36W[Lm  ]  =    2800
 Lamp  Luminous  Flux  EM  @  58W[Lm  ]  =    4600
 Spectral  power  distribution  TL-D  90  De  Luxe  Pro/940  :-
 
 
 TL-D  90  De  Luxe  Pro  18W/950  SLV  -  T8  
 
 Colour  Rendering  Index[Ra8  ]  =  93
 Colour  Designation  =    Daylight
 Colour  Temperature[K  ]  =    5300K
 Lamp  Luminous  Flux  EM  @  18W[Lm  ]  =    1150
 Lamp  Luminous  Flux  EM  @  36W[Lm  ]  =    2800
 Lamp  Luminous  Flux  EM  @  58W[Lm  ]  =    4550
 Spectral  power  distribution  TL-D  90  De  Luxe  Pro/950  :-
 
 
 TL-D  90  de  Luxe  Pro  18W/965  SLV  -  T8  
 
 Colour  Rendering  Index[Ra8  ]  =  93
 Colour  Designation  =  Cool  Daylight
 Colour  Temperature[K  ]  =  6500
 Lamp  Luminous  Flux  EM  @  18W[Lm  ]  =    1150
 Lamp  Luminous  Flux  EM  @  36W[Lm  ]  =    2800
 Lamp  Luminous  Flux  EM  @  58W[Lm  ]  =    4550
 Spectral  power  distribution  TL-D  90  De  Luxe  Pro/965  :-
 
 
 Compare  this  with  the  T5  Tubes  from  Philips  and  see  the  spectrum  ,  these  tubes  are  also  available  in  India  Now:-
 
 TL5  HO  90  de  Luxe  Pro  49W/965  SLV    
 Colour  Rendering  Index[Ra8  ]  =  93
 Colour  Designation  =  Cool  Daylight
 Colour  Temperature[K  ]  =  6800K
 Lamp  Luminous  Flux  25°C  EL[Lm  ]=  3700
 
 Spectral  power  distribution  TL5  HO  90  de  Luxe  Pro/965  
 
 
 and  :-
 
 MASTER  TL5  HO  Super  80  24W/865  SLV
 Colour  Rendering  Index[Ra8  ]=  85
 Colour  Designation  =    Cool  Daylight
 Colour  Temperature[K  ]=    6500K
 Lamp  Luminous  Flux  25°C  EL[Lm  ]  =  1650
 
 Spectral  power  distribution  MASTER  TL5  HO  Super  80/865  
 
 
 Spectrum  Required  for  Photosysthesis  :-
 (source  :-  http://www.emc.maricopa.edu/faculty/farabee/BIOBK/BioBookPS.html)
 
 
 Chlorophyll  does  not  absorb  all  the  wavelengths  of  visible  light  equally.  Chlorophyll  a,  the  most  important  light-absorbing  pigment  in  plants,  does  not  absorb  light  in  the  green  part  of  the  spectrum.    Light  in  this  range  of  wavelengths  is  reflected.  This  is  the  reason  why  chlorophyll  is  green  and  also  why  plants  (which  contain  a  lot  of  chlorophyll)  are  also  green.The  absorption  of  light  by  chlorophyll  a  is  at  a  maximum  at  two  points  @  430  and  662  nm.  The  rate  of  photosynthesis  at  the  different  wavelengths  of  visible  light  has  two  peaks  which  roughly  correspond  to  the  absorption  peaks  of  chlorophyll  a  at  430nm  &  662nm.  
 
 Now  let  us  look  at  a  product  from  Philips  Aquarelle  /89  :-
 
 Source  
 http://www.prismaecat.lighting.philips.com/LightSite/Whirlwind.aspx?eca=LLPPLG&cpf=GBEPEN&stg=ACT&lan=EN+&ecu=SPL|PHL|GX&cnt_key=XUACOL89+|PHL&t=1&tree=0&scr_md=1111&%20nav=Null&loc=Null&leftnav=1_1
 
 Product  Features
 Light  output  closely  matches  the  natural  light  wavelength  which  is  required  for  successful  photosynthesis  and  chlorophyll  synthesis  Particularly  high  energy  in  the  blue  region,  providing  a  well  balanced  spectrum  which  stimulates  oxygen  production,  promotes  thriving  aquarium  plant  and  fish  life  and  gives  good  colour  rendering  
 
 Can  be  combined  with  Philips  TL-D/80  New  Generation  or  TL-D/90  de  Luxe  colours  to  create  different  visual  impressions  without  impairing  the  biological  qualities  of  the  Aquarelle  light  output  
 
 Application
 Optimally  tuned  to  reveal  the  true  beauty  of  fish  and  plant  life  in  fresh  water  aquaria  
 
 TL-D  25W/89  SLV
 Colour  Rendering  Index[Ra8  ]=  70
 Colour  Designation  =  Aquarelle
 Colour  Temperature[K  ]  =  10000
 Lamp  Luminous  Flux  EM[Lm  ]  =  1440
 
 Spectral  power  distribution  TL-D/89  :-
 
 
 HAGEN  -  A-1614  Flora-Glo  Fluor.  Aquarium  Lamp  -  45.72cm  -  T8
 source  :-  http://www.hagen.com/uk/aquatic/sub_category_psubtype.cfm?CAT=1&SUBCAT=112&PSUBCAT=11204
 
 -  For  growing  plants
 -  Standard  intensity
 -  Warm  photosynthetic  spectrum
 -  Ideal  for  planted  aquariums  and  terrariums
 
 
 
 HAGEN  -    A-1580  Aqua-Glo  Fluor.  Aquarium  Lamp  -  30.48cm  -  T5  
 
 -  Intensifies  fish  colours
 -  Promotes  plant  growth
 -  Photosynthetic  growing  lamp
 -  Stimulates  plants
 -  Promotes  colour  highlights  in  fish
 
 
 
 AZOO  Lights
 
 AZOO  SUPER  LIGHT’s  spectral  output  simulates  the  light  spectrum  as  it  occurs  in  nature  when  transmitted  below  the  water  surface.  Suitable  for  the  growth  of  water  plants.
 
 Specrtum  Image  Azoo  Super  Light:-
 
 
 AZOO  TRI-POWER  LIGHT  Imitate  the  solar  spectrums,  and  is  
 designed  on  three  levels  timeters.  It  provides  red,  green,and  blue  light  for  
 photosynthesis  need.  It's  the  best  illumination  for  water  plants,  algae  and  invertebrate.  It  presents  the  the  most  prolific  photosynthesis.
 
 Spectrum  Image  Azoo  Tri-  Power  Light:-
 
 
 So  from  this  one  can  see  which  is  the  best  suited  light  for  Aquarium  Plants  in  the  TLD  90  DeluX  Series.
 
 Sujoy


Last edited by joyban on Sat Jan 21, 2006 1:16 pm; edited 2 times in total
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joyban
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PostPosted: Sat Jan 21, 2006 12:30 pm Post subject:  Reply with quote

 Also  Please  go  through  the  following  document  :-
 
 1.  
 
 http://web.telia.com/~u86438141/articles/article_rng_lighting.htm
 
 2.
 http://www.aquabotanic.com/lightcompare.htm
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