Water cooling grow LEDs

I needed a few more lights for my second greenhouse bed.  I had the bright idea to use water cooling because, well, I already have a water system, why not direct the heat from the LEDs somewhere useful, like the soil bed?

You can take a look at my previous blogs on how I made the LED strips.  This time, instead of using heat sinks, I used water blocks, which were about the same price.

After a long break from lights, I finally got a system put in to water cool several components at the same time from the same pump.  Check it the video explaining that here:

I’ve got everything I want just about hooked up to the water system including a water cooled air intake system and the solar and CO2 generator.  Only thing left is maybe another heat exchanger and maybe another strip of lights.

Initial testing is promising.  After several minutes (long enough for part of the aluminum back to get very hot to the touch), the water blocks and surrounding area remained very cool.

What about cost?  Well, this actually ended up being cheaper than the previous system.  The water blocks where the same cost, but the savings came in the power supply.  I have been using one power supply per 6 LEDs (180W per 6).  Instead of a 350W power supply (that can’t really do two at full power, I’m using a 400W 24V power supply to power 12 LEDs instead of just 6.  This saves me about $50 per 12 LEDs.

Stay tuned, I have something awesome in the works related to LED grow lights.  I think it will take these lights to the next level.

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