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My nano tank with my diy Led light

28K views 26 replies 14 participants last post by  tosinaco 
#1 ·
Ciao guys,
this is my diy led light and my tanks 40x25x25 (cm).
Leds are 5 Cree XP-G R5 6500°K, powered by 700mA constant current.
Each led is attached on 3-5W heat sink and each heat sink is attached on aluminium bar.

The light ia active from 3/03/2012 (view first 3 photo).

Composition of the bottom:
ADA Turmaline BC
ADA Power Sand
ADA New Amazonia

The plant's are:
- Tenellus
- Hemianthus Callitrichoides
- Moss

The tank:


Tank + Leds


Leds detail:



This is the last photo (19/03/2011),
the light led is incredible.... Explosive plant's growth. Zero algae.

Daily ADA fertilization :
- Bright K 1 ml
- Step1 1 ml
- Special light 1 ml
- Green gain 1 drop


What do you think? :biggrin:

Ciao Christian :icon_smil
 
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#20 ·
#23 ·
Ciao guys,
we calculate the consumption of the led light.

The image shows the working point of an LED (extract from Cree XP-G led datasheet). Each LED is powered by a constant current of 700mA. With this current, the voltage across an LED is equal (approximately) to 3.2 Volt.

The power consumed by each LED is given by:
P = I(current) x V(voltage) = 0.7(Ampere) x 3.2(Volt) = 2.24 Watt

The total power consumed by light is only: :icon_mrgr
Ptot = P x num.leds = 2.24 x 5 = 11.5 Watt

I leave you comments ...



Ciao ciao Christian
 
#24 ·
Ciao guys..

Another update of my nano tank. The pictures date is 19 May 2012

The pic. show clearly the rate of growth plant after pruning (1 May 2012)...

I'm very happy. I can say that the "led" experiment is successful!! :icon_lol:

Ciao and thanks all... Christian







 
#27 ·
Find it very beautiful.

So it is you who I "copied" the supporting of my diy led fixture from. That was almost a year ago and I saw a post similar like this but in an italian forum although I don't understand italian (I hope that's you ^^). Thank you for sharing your tank and your lighting fixture.
 
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