cfl vs led vs halogen lights

Discuss on lighting requirements for marine/reef aquaria.
User avatar
vikas
Rising Star of AquaPetZ!
Rising Star of AquaPetZ!
Posts: 498
Joined: Mon Dec 10, 2012 10:54 pm
Location: karol bagh dilly

cfl vs led vs halogen lights

Unread post by vikas »

which lights are best for planted aquariums.. their specturm,intensity all these phenomenon would play a role or not? what to look for when buying lights for planted aquarium?
moz lo roz lo na mile to khoz lo ---


╙°•●·|√♪ҝą૬ |°•●·╕
asheesh
Rising Star of AquaPetZ!
Rising Star of AquaPetZ!
Posts: 576
Joined: Wed Mar 28, 2012 11:49 am
Location: Delhi
Contact:

Re: cfl vs led vs halogen lights

Unread post by asheesh »

all of these have pros and cons
LEDS are best right now very less heat and longer life
Image Image Image
User avatar
vikas
Rising Star of AquaPetZ!
Rising Star of AquaPetZ!
Posts: 498
Joined: Mon Dec 10, 2012 10:54 pm
Location: karol bagh dilly

Re: cfl vs led vs halogen lights

Unread post by vikas »

asheesh wrote:all of these have pros and cons
LEDS are best right now very less heat and longer life
do we have the same rule for led as 2-3 w/g? or less watts will do?
moz lo roz lo na mile to khoz lo ---


╙°•●·|√♪ҝą૬ |°•●·╕
User avatar
SCORPIO
Site Admin
Site Admin
Posts: 10376
Joined: Tue Oct 04, 2011 11:01 am
Location: Delhi, India
Contact:

Re: cfl vs led vs halogen lights

Unread post by SCORPIO »

vikas wrote:
asheesh wrote:all of these have pros and cons
LEDS are best right now very less heat and longer life
do we have the same rule for led as 2-3 w/g? or less watts will do?
Watt Per Gallon rule is now old with the new technology lighting equipments. Follow the lumens per gallon rule.

Sai, apuda can lighten more on this.
“Take up one idea. Make that one idea your life - think of it, dream of it, live on that idea. This is the way to success.”

...................Swami Vivekananda
User avatar
vikas
Rising Star of AquaPetZ!
Rising Star of AquaPetZ!
Posts: 498
Joined: Mon Dec 10, 2012 10:54 pm
Location: karol bagh dilly

Re: cfl vs led vs halogen lights

Unread post by vikas »

SCORPIO wrote:
vikas wrote:
asheesh wrote:all of these have pros and cons
LEDS are best right now very less heat and longer life
do we have the same rule for led as 2-3 w/g? or less watts will do?
Watt Per Gallon rule is now old with the new technology lighting equipments. Follow the lumens per gallon rule.

Sai, apuda can lighten more on this.
how many lumens per gallon?
moz lo roz lo na mile to khoz lo ---


╙°•●·|√♪ҝą૬ |°•●·╕
User avatar
sushant
Moderator
Moderator
Posts: 2888
Joined: Fri Oct 07, 2011 12:36 am
Location: Faridabad, Haryana
Contact:

Re: cfl vs led vs halogen lights

Unread post by sushant »

vikas wrote:
asheesh wrote:all of these have pros and cons
LEDS are best right now very less heat and longer life
do we have the same rule for led as 2-3 w/g? or less watts will do?
W/G is no longer used. it used to calculate an approx value of lumens emitted by a standard T8 tube (excess of modern light meters to a hobbyist was very limited). For plant you need PAR and PUR values.
Sushant
User avatar
saikumar
Aspiring Star of AquapetZ!
Aspiring Star of AquapetZ!
Posts: 974
Joined: Sat Nov 17, 2012 7:44 am
Location: Secunderabad(far from REZ)

Re: cfl vs led vs halogen lights

Unread post by saikumar »

Suggest you to go with 3w/g decreasing will be easier than increasing, and add to fact few LEDs d blow off in experiment runs.
User avatar
vikas
Rising Star of AquaPetZ!
Rising Star of AquaPetZ!
Posts: 498
Joined: Mon Dec 10, 2012 10:54 pm
Location: karol bagh dilly

Re: cfl vs led vs halogen lights

Unread post by vikas »

sushant wrote:
vikas wrote:
asheesh wrote:all of these have pros and cons
LEDS are best right now very less heat and longer life
do we have the same rule for led as 2-3 w/g? or less watts will do?
W/G is no longer used. it used to calculate an approx value of lumens emitted by a standard T8 tube (excess of modern light meters to a hobbyist was very limited). For plant you need PAR and PUR values.
How to calculate all these PAR PUR values?
moz lo roz lo na mile to khoz lo ---


╙°•●·|√♪ҝą૬ |°•●·╕
asheesh
Rising Star of AquaPetZ!
Rising Star of AquaPetZ!
Posts: 576
Joined: Wed Mar 28, 2012 11:49 am
Location: Delhi
Contact:

Re: cfl vs led vs halogen lights

Unread post by asheesh »

The thumb rule to calculate no of led is (The area of footprint of your tank / 22) mainly used to calculate for 3w high power led, example my tank is 36 X 18 X 24 so

36 X 18 = 648 sq inch, 648/22=29.4 so will keep 30, 30X3 =90 watt




Extracted from following link
http://indianaquariumhobbyist.com/commu ... c&start=15
Image Image Image
User avatar
saikumar
Aspiring Star of AquapetZ!
Aspiring Star of AquapetZ!
Posts: 974
Joined: Sat Nov 17, 2012 7:44 am
Location: Secunderabad(far from REZ)

Re: cfl vs led vs halogen lights

Unread post by saikumar »

That number doesnt take into consideration tank height. Am not sure how they developed it.

When you calculate the area you Dint include height in equation...did you observe the ambiguity ?

And 3W chinese and 3W Cree are 'zameen-aasman' diff.
Post Reply