Multichip led build number two
Planted Tank Forums
Your Tanks Image Hosting *Tank Tracker * Plant Profiles Fish Profiles Planted Tank Guide Photo Gallery Articles

Go Back   The Planted Tank Forum > Specific Aspects of a Planted Tank > DIY


Reply
 
Thread Tools Display Modes
Old 11-06-2014, 07:36 PM   #1
Matsnork
Planted Tank Obsessed
 
PTrader: (0/0%)
Join Date: Jun 2013
Location: Sweden
Posts: 346
Default

Multichip led build number two


So Iīm very happy with my led cannon as seen here: http://www.plantedtank.net/forums/sh...946&highlight= But I want an excuse for a new winter project so something with better/narrower spread would be nice as a lot of light now spills on the floor and wall much like the old MH lights, and so lights up my living room and feels a bit inefficient.

Any ideas and input are welcome

First plan was to build a water cooled system, but then I found some computer (graphics card processor or gpu) heatsinks on sale so I bought 4 of them for about 30usd. They have lots of heat pipes and should keep the leds really cool.
I plan on bolting 2 or 3 of them together to make one long continous sleek heatsink and run the fans on low rpm. I like the look of the grey shrouds.

I have ordered 3 adjustable 50-80 degree reflector/lens for <100w.

I have yet to decide on led chips. 3x50w, 2x100w, 2x50w (overdriven) initially powered by my old 150w driver. Also been looking into getting two 5 channel Lumia 5.2 65w chips with a storm controller, but then the cost will be rather silly... Full spectrum and sunset, cloud effects would be nice though.

Not my pictures or vid. Cudos to whoever took/made them (see the watermarks).




http://youtu.be/E_uG10lUraI?t=2m1s



/ Marcus - Sweden

Last edited by Matsnork; 11-06-2014 at 07:49 PM.. Reason: Typo
Matsnork is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 11-06-2014, 09:08 PM   #2
Matsnork
Planted Tank Obsessed
 
PTrader: (0/0%)
Join Date: Jun 2013
Location: Sweden
Posts: 346
Default

Just picked up the heatsinks.



Build a shroud to hide the fins and heatpipes? I kind of like the industrial look...

Matsnork is offline   Reply With Quote Quick reply to this message
Old 11-08-2014, 05:23 PM   #3
jeffkrol
Planted Tank Guru
 
PTrader: (0/0%)
Join Date: Jun 2013
Location: WI
Posts: 2,441
Default

Quote:
Originally Posted by Matsnork View Post
Just picked up the heatsinks.



Build a shroud to hide the fins and heatpipes? I kind of like the industrial look...
Yes so do I.. JUST an FYI.. Not near as powerful as what you are used to working w..up to 39W /board..
but this little reef centric company does have an interesting chip:
http://reefll.com/index.php?route=pr...product_id=117
jeffkrol is online now   Reply With Quote Quick reply to this message
Old 11-08-2014, 10:32 PM   #4
Matsnork
Planted Tank Obsessed
 
PTrader: (0/0%)
Join Date: Jun 2013
Location: Sweden
Posts: 346
Default

Cheers mate. That looks to be a nice budget multi chip. I've checked it out before but forgot about it until now. A little on the weaker side but could work if I use a setup of three, it's a low tech tank after all.
Matsnork is offline   Reply With Quote Quick reply to this message
Old 11-16-2014, 11:29 PM   #5
Matsnork
Planted Tank Obsessed
 
PTrader: (0/0%)
Join Date: Jun 2013
Location: Sweden
Posts: 346
Default

Optics came the other day. Havent decided on what leds to use though.



Matsnork is offline   Reply With Quote Quick reply to this message
Old 11-17-2014, 04:48 PM   #6
AlanLe
Dude Where's Your CO2?
 
AlanLe's Avatar
 
PTrader: (9/100%)
Join Date: Jan 2013
Location: San Jose, CA
Posts: 990
Default

how loud are the fans? my understanding is these computer fans are not that quiet.
__________________
http://s32.photobucket.com/user/onephattai/media/banners/alanle.png.html
AlanLe is online now   Reply With Quote Quick reply to this message
Old 11-18-2014, 02:40 AM   #7
Matsnork
Planted Tank Obsessed
 
PTrader: (0/0%)
Join Date: Jun 2013
Location: Sweden
Posts: 346
Default

Quote:
Originally Posted by AlanLe View Post
how loud are the fans? my understanding is these computer fans are not that quiet.
An ordinary 80mm computer fan can be run totally silent. The smaller the fan the higher the rpm needs to be to push air wich generates a more high pitched sound.

The key is to use a big enough fan and heatsink with an adjustable power source so you can manage the rpmīs to match your application.

Last edited by Matsnork; 11-18-2014 at 03:10 AM.. Reason: typo
Matsnork is offline   Reply With Quote Quick reply to this message
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the The Planted Tank Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 07:34 PM.


Powered by vBulletin®
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright Planted Tank LLC 2012