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#1
10-07-2012, 09:33 PM
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HPS light
I'm wondering how many hours a day and how close to the orchids I should use a Hight Pressure Sodium light. It is 150 Watts.
The fluorescent lights, T5 high output, are a total of 216 Watts. There are 4 of them and 48" long. They are kept on for 12 hrs/day. All 4 of the bulbs are "grow" lights, not the red or blooming type. The orchids are catts, phals, oncidiums and one vanda. Thanks much. 
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