subsea Posted January 26, 2011 Share Posted January 26, 2011 Prefer 4 bulb fixture. Prefer 10K or lower kevin number. I will use these fixtures to grow macro algae in outside growout tanks. Quote Link to comment Share on other sites More sharing options...
Robb in Austin Posted January 27, 2011 Share Posted January 27, 2011 Outside as in in the garage or as in outdoors? If outdoors, why? Look into garage lights from home depot/lowes. Quote Link to comment Share on other sites More sharing options...
FragsandMore Posted January 27, 2011 Share Posted January 27, 2011 We have a nice 4 foot 4x96 watt PC light with brand new bulbs ( 2 x actinic and 2 x 10000K) Quote Link to comment Share on other sites More sharing options...
subsea Posted January 27, 2011 Author Share Posted January 27, 2011 Rob, I just did buy two cheap double bulb shop lights with 6500K bulbs: bulbs were $6 each and fixture was nine dollars. The first fixture lasted 3 days and the second made one day. The tanks are on the south side of my home in an exterior poarch. These tanks are linked with a 150 gallon stock tank buried in the ground. In the future this sump tank buried in the ground will feed multiple small tanks exposed to direct sunlight. During the summer time it is easy to cool water using evaporation. In the winter, heating is expensive. I capture some solar and geothermal energy. Last winter I started running $500 a month electric bills with at least $300 going into heating water to 75 degrees. I have now selected temperature tolerant seaweed that is ediable by fish and people. Quote Link to comment Share on other sites More sharing options...
Robb in Austin Posted January 27, 2011 Share Posted January 27, 2011 In that case, I'd suggest either a DIY T5 setup or a used T5 unit such as a TEK or Nova Extreme Pro. Either should be fine for growing macro, and you could use the GE daylight lamps which you should be able to get reasonably cheap($15 per at Reefgeek). I'd only replace them when they burn out too, should be able to get a year out of them. Quote Link to comment Share on other sites More sharing options...
subsea Posted January 27, 2011 Author Share Posted January 27, 2011 I am also considering usings clip on assembles with a damp proof socket and a 16W PC bulb from Home Depot/Lowes. Its an inexpensive refugium light but I have cliped on (8) 60Wbulbs putting out 480W of illumination at 6500K . It is unattractive but for an outside growout system whose goal is to at least pay for itself it works for me. . Quote Link to comment Share on other sites More sharing options...
Long Posted January 29, 2011 Share Posted January 29, 2011 I got two of these 2L T8 brand new in my garage made for outdoors with lamps and cord. I think the exterior is made from fiberglass w/ a clear lens. Bought last year for my patio but never hung it and probably never will $40.00 each and its yours. Quote Link to comment Share on other sites More sharing options...
subsea Posted January 29, 2011 Author Share Posted January 29, 2011 What kevin number to the bulbs. Quote Link to comment Share on other sites More sharing options...
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