Author Topic: Indoor Grow Lights  (Read 2879 times)


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Indoor Grow Lights
« on: June 24, 2015, 06:57 PM »
Any one with recommendation on best indoor grow lights? Any experience with LED lights?


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Re: Indoor Grow Lights
« Reply #2 on: June 27, 2015, 11:36 PM »
I have used 48 inch regular cool white fluorescent tubes with good success.   I usually have a 2 tube shoplight step up for overwintering tropicals.  The tubes need to be on for 14 to 16 hours per day as they are less bright than sunlight.  Also remember that the center section of the tube is the brightest thus the longer tubes are the most useful.  Also keep the tubes close to the tops of the trees.  Three or four inches away is good.  I have mine hung on chains so I can easily adjust the height.  Sorry but no experience with LEDs.  I know there are some used in greenhouses but I question the color temperature of them.

Leo in NE Illinois

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Re: Indoor Grow Lights
« Reply #3 on: July 09, 2015, 02:43 PM »
i currently use an 8 tube, 48 inch sun blaze, T5 fixture with 6500K lamps. This is as bright or brighter than a 400 watt HPS sodium discharge lamp

The reflector is important, look for a well aimed, mirror finish reflector, that directs most of the light down to the plants. That is why I recommend Sun Baze brand. This set up is bright enough for full sun plants, I even got resonably tight growth on a Japanese black pine one winter. (the tree had a month or so dormant, then I put it under the lamp to grow, and it did).

Plants are 24 inches inches or so from the fixture. the fixture lights a 6 x 4 foot area quite nicely.
I use an 18 hour day length.

my personal experience 10years ago with LED has been poor, but I have not tried then recently, I know they improved, but am quite happy with the T5, so won't switch until a fixture quits.