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1 LED 20W CW+RB


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#51
acabgd

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Yes, but it's far from enough. This high power LED is drawing over 2 amps, and the driver he suggested goes to 980mA, meaning 0.98A. It's not powerful enough.

#52
Lingwendil

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The only problem I've had were the drivers, or rather the LED actually. It draws over 2 amps of power (measured up to 2.05A) and the drivers I've bought go only to 1.67A, and were not powerful enough. I therefore had to improvise and connect 2 drivers inline in order to get enough power. The drawback is that one driver gets very hot as it runs at almost maximum power all the time, so I will have to find another solution with a stronger driver.


you connected the drivers in series? if so, pull one out, you're unnecessarily loading one of those drivers. as long as the drivers you have can only supply 1.67A, you wont get anywhere by daisy chaining them that way.

Edited by Lingwendil, 21 March 2012 - 09:27 PM.

I canít spoil the plot because THANK GOD THERE ISNíT ONE. Just ass kicking that kicks ass that, while said ass is getting kicked, is kicking yet more ass thatís hitting someoneís balls with a hammer made of ice but the ice is frozen whiskey.


#53
acabgd

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I can't pull one out... If I connect only one the LED doesn't work. Or actually it does for like 10 seconds, then start flickering as the overload protection from the driver kicks in. They are also not in series but rather parallel.

#54
Lingwendil

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Oh, cool. Series would have been bad.

I canít spoil the plot because THANK GOD THERE ISNíT ONE. Just ass kicking that kicks ass that, while said ass is getting kicked, is kicking yet more ass thatís hitting someoneís balls with a hammer made of ice but the ice is frozen whiskey.


#55
MOJOEJOEJOE

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Yes, but it's far from enough. This high power LED is drawing over 2 amps, and the driver he suggested goes to 980mA, meaning 0.98A. It's not powerful enough.



This is what i used on my build. its a nice little supply cheap.Plus you can get different variations with current up to 6 amps.
http://www.ebay.com/...=item58909b4755

Edited by MOJOEJOEJOE, 26 March 2012 - 08:38 AM.


#56
acabgd

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This is what i used on my build. its a nice little supply cheap.Plus you can get different variations with current up to 6 amps.
http://www.ebay.com/...=item58909b4755

Thansk for the heads up.

Here are also some photos of the growth with this led. First photos were taken on March 15, the second ones on April 1. Might not seem like much, but it's only 2 weeks and I also had a couple of days without lights due to cyano (my tank was less than 2 months old). However, I am impressed with my Acan Lord which is growing 2 new heads!

growth_20120401_01.jpg

growth_20120401_02.jpg

#57
devmasa

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This is what i used on my build. its a nice little supply cheap.Plus you can get different variations with current up to 6 amps.
http://www.ebay.com/...=item58909b4755


how did you connect this? with a dimmer ? the o/p rating looks different than what the 20w expects.
Can you please post a photo of your setup?

#58
acabgd

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Some more growth pics...

growth_20120409_02.jpg

#59
darkside212

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ever get any PAR readings?