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http://indianaquariumhobbyist.com/community/ :: View topic - LED Lights for Planted Tanks
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LED Lights for Planted Tanks

 
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Dolfin
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PostPosted: Wed Feb 24, 2010 5:57 pm Post subject: LED Lights for Planted Tanks Reply with quote

 Hi  friends,
 
 I  saw  flexible  strips  of  white  LED  lights  with  local  electrical  shops  in  Mumbai.  They  contain  3  LEDs  /  2  inch  and  generate  very  high  intensity  white  light  probably  between  6-7K  color  temperature.  Shops  quoted  Rs.250-300  per  meter  and  a  driver  unit  costing  Rs.300-400.  The  strips  can  be  cut  into  desired  lengths  and  joined  together  at  home.
 
 The  shopkeeper  said  the  life  is  claimed  to  be  50K  Hrs  but  no  guarantee  since  Chinese  origin.  Can  anybody  share  their  opinions  on  using  it  for  plated  tanks?  
 
 Thanks  n  Regards,
 Dolfin
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saikumar
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PostPosted: Wed Feb 24, 2010 9:35 pm Post subject: Re: LED Lights for Planted Tanks Reply with quote

 Hi  Dolfin  Smile  
 
 Does  it  mention  any  Lumens  &  wattage  apart  from  life  time?
 
 BTW  does  it  look  anything  like  this?  http://img.diytrade.com/cdimg/502058/5719390/0/1208839082/2_Wire_Round_LED_Rope_Lighting.jpg
 
 If  so  wouldn  suit  your  needs.
 
 Good  luck.
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Dolfin
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PostPosted: Thu Feb 25, 2010 5:52 pm Post subject: Re: LED Lights for Planted Tanks Reply with quote

 Unfortunately  there  is  no  info  on  the  lumens  or  wattage.  I  herd  LED  wattage  can  not  be  compared  with  MH  or  PL.
 
 It  looks  like  this:
 
 Link:  LED  Lit  Strip  
 Link:  LED  Off  Strip
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nash81
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PostPosted: Thu Feb 25, 2010 6:15 pm Post subject: Re: LED Lights for Planted Tanks Reply with quote

 Hi,
 
 These  look  more  like  SMD  based  LED's.  Surely  can  be  used,  but  to  get  the  right  amount  of  light  for  a  planted  tank,  you  may  need  a  very  large  quantity.  Also  LEDs  dont  have  a  spread.  So  it  looks  more  like  spot  lights.
 
 For  now  i  would  restrict  these  kind  of  strips  for  moonlight  usage.
 
 Warm  Regards
 Nirav  shah
 Indiapetstore.com
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saikumar
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PostPosted: Thu Feb 25, 2010 6:23 pm Post subject: Re: LED Lights for Planted Tanks Reply with quote

 Hi  Dolfin,
 
 From  the  pics  you  have  posted,  they  do  look  different  from  standard  3mm/8mm.
 Then  they  surely  look  to  be  the  high-power  LEDs,  would  do  better  than  the  3mm/8mm  performance  on  the  planted  tanks(what  height?  no  idea  unless  we  know  its  specs).
 
 But  as  we  yearn  for,  what  we  want  is  an  effecient  than  CFL/MH  lighting.  So  only  parameter  is  Luens/watt.
 Hence  you/we  need  to  know  more  about  its  make.  Thumb Up  
 
 BTW  just  check  this  links  of  LUXEON  LEDs
 http://www.luxeonstar.com/luxeon-rebels-c-142.php
 http://www.luxeonstar.com/
 If  the  LEDs  used  in  the  strips  match  with  anything  nice  &  Luminous  then  great  find  for  that  price  Smile  
 
 Good  luck;  a  closeup  picture  of   the  LEDs  you  have  seen  will  be  much  better  to  advice  back.
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Dolfin
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PostPosted: Fri Feb 26, 2010 12:12 am Post subject: Re: LED Lights for Planted Tanks Reply with quote

 Hi  Sai
 
 I  came  across  this  site  which  gives  more  information  on  LED  selection  for  aquariums.  Here  the  author  questions  watts  /  gallon  and  lumens  per  watt  rules.  According  to  him  the  newer  generation  lights  produce  more  lumes  /  watt  for  e.g.  a  T12  light  that  is  rated  at  20  watts  with  a  total  lumen  output  of  800  lumens  has  a  lumen  per  watt  output  of  40.  While  a  13  watt  T2  bulb  rated  at  950  lumens  has  a  lumen  output  of  73  lumens  per  watt.  Also  lights  like  LEDs  produce  more  focused  light  compared  to  traditional  sources  (like  CFL)  requiring  only  half  the  lumens  to  provide  essential  energy.
 
 It  seems  that  even  after  I  manage  to  get  the  lumens  &  watt  specs  for  these  strips,  it  needs  to  be  seen  in  different  angle.  I  also  agree  with  Nirav  that  because  of  the  focused  light  of  LEDs  I  need  more  of  them.  I  was  anyways  planning  to  put  several  strips  in  overlapping  mode  (like  wall  bricks)  to  cover  the  entire  hood.  Apart  from  the  low  heat,  low  power  consumption  and  high  life,  LEDs  also  have  advantage  of  high  PAR  rating.  Considering  this,  digging  a  bit  more  on  these  strips  might  prove  useful.
 
 Regards,
 Dolfin
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saikumar
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PostPosted: Fri Feb 26, 2010 9:29 am Post subject: Re: LED Lights for Planted Tanks Reply with quote

 Hey  Dolfin,
 
 The  T2  seem  to  be  very  very  new  kind,  only  by  [link=http://www.osram.com/osram_com/Tools_%26_Services/Downloads/General_lighting/Fluorescent_lamps/LUMILUX_T2/index.html]OSRAM.[/link]
 
 Either  ways  we  have  come  far  away  from  T12  generation  now  Smile  T5  seems  to  be  the  call  of  the  day.
 
 
                                                 
Dolfin  wrote  (View  Post):                

 Also  lights  like  LEDs  produce  more  focused  light  compared  to  traditional  sources  (like  CFL)  requiring  only  half  the  lumens  to  provide  essential  energy.
                 

 Did  you  mean  the  otherway  round?
 
 
                                                 
Dolfin  wrote  (View  Post):                

 It  seems  that  even  after  I  manage  to  get  the  lumens  &  watt  specs  for  these  strips,  it  needs  to  be  seen  in  different  angle.  I  also  agree  with  Nirav  that  because  of  the  focused  light  of  LEDs  I  need  more  of  them.  I  was  anyways  planning  to  put  several  strips  in  overlapping  mode  (like  wall  bricks)  to  cover  the  entire  hood.  Apart  from  the  low  heat,  low  power  consumption  and  high  life,  LEDs  also  have  advantage  of  high  PAR  rating.  Considering  this,  digging  a  bit  more  on  these  strips  might  prove  useful.
                 

 Exactly,  thats  what  I  meant  when  I  said  it  depends  on  your  tank  height.  Suppose  you  say  it  has  very  good  strong  focusing(narrow)  beam,  then  you  can  always  hang  the  fixture  high  above  the  water  to  get  the  required  uniformity,  and  still  not  lose  your  light  rays/power/money.
 
 Do  update  back  with  your  efforts  soon.
 &
 CHeers  that  you  are  going  grEEn  Thumb Up
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Dolfin
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PostPosted: Tue Mar 02, 2010 1:21 pm Post subject: Re: LED Lights for Planted Tanks Reply with quote

 Hi,
 
 I  got  in  touch  with  a  leading  light  shop  in  Mumbai  and  got  information  that  the  strip  operates  at  6  watt  (per  meter)  and  the  lumens  is  around  20.  There  is  high  wattage  strip  available  (13  watt)  but  the  cost  would  be  around  Rs2000/meter.  I  searched  on  Amazon.com  and  found  that  a  225  LED  panel  (1'x1')  is  available  specifically  for  plant  growth  (link  here)  but  the  same  is  too  big  to  fit  on  my  aquarium.
 
 While  surfing  a  came  across  a  GE  45851CFL  that  has  astounding  lumens  rating  of  4800  (at  55  watts),  giving  one  of  the  highest  lumens  /  watt  (87)  I've  seen  yet  (link  here)  GE  recommends  this  tube  for  Reef  and  Freshwater  Aquarium.
 
 Is  there  anybody  using  it  here  in  India  or  can  share  their  PoV?  I  can  import  this  tube  in  India  from  20north  for  ~900-1000/  pc
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Mortis
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PostPosted: Tue Mar 02, 2010 8:53 pm Post subject: Re: LED Lights for Planted Tanks Reply with quote

 I  have  heard  of  20north  but  have  you  used  them  before  and  are  they  reliable  ?
 
 Looks  good.  The  colour  temperature  is  about  10000K  so  it  might  have  a  slight  bluish  tint.  However,  the  Azoo  plant  bulb  is  also  10000K  and  it  doesnt  look  too  blue  so  you  might  be  OK  or  you  could  balance  out  the  colour  with  another  tube
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Dolfin
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PostPosted: Wed Mar 03, 2010 12:11 pm Post subject: Re: LED Lights for Planted Tanks Reply with quote

                                                   
Mortis  wrote  (View  Post):                
I  have  heard  of  20north  but  have  you  used  them  before  and  are  they  reliable  ?
                 

 
 I  have  ordered  goods  from  20north  before.  Did  not  face  any  problem.  Couple  of  my  friends  also  ordered  and  got  w/o  any  problem.  USP  of  them  is  they  get  the  products  below  10K  imported  duty  free  (as  a  gift)  &  it  works.
 
 Anyways  I  would  first  prefer  to  find  it  locally.  If  not  then  only  choose  to  import.
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PostPosted: Fri Apr 15, 2011 11:09 am Post subject: Re: LED Lights for Planted Tanks Reply with quote

 A  new  green  way  of  lighting  to  your  life  for  led  lights.
 
 http://www.facebook.com/ledlightsliving
 http://www.ledlightsliving.com/
 http://www.ledlightsliving.com/led-grow-lights-c-105.html
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