Aquatic Plant Forum banner
1 - 1 of 1 Posts

·
Registered
Joined
·
48 Posts
Your calcs seem right on, good work. 60 LEDs sounds about right for a good medium amount of light. That is not high light though, nor expect it to be.

Your assessment of the current situation is about acurate. To prevent too much current passing through the strings I used this http://www.instructables.com/id/EK2XAPS11GEWOF2YSD/ . However you fail to grasp something here, that 10A rating is usually max SHORT burst, not sustained. Your PSU would probably fail within the 1-6 months depending. A second PSU is in order, even more so if you want to get to high lighting. Or you could lower the current on all 10 strings to 700-750mA.

In regards to heat sinking, this is where it gets tricky. http://www.heatsinkusa.com/ offers some good solutions. Water cooling with aquarium water might be a bad idea, while you may have 130g (roughly) of 83 degree water, 60 LEDs will impact your temp far too much, and could cause temp swings, just as with your 4x96w fixture. Just 3 HP Luxeons on a small heatsink can cause the temp to get up to 185 degrees in under an hour with no airflow. Water cooling with tank water could cause issues. Water cooling is a good idea, but better with a separate system.
 
1 - 1 of 1 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top