Depending on the genera it may not be too strong for them.Really the only way is to find out the 'foot candles/Lux' that they require and then get a light meter to measure the light at the given distance .If the seeds are from the Odontoglossum alliance they require 280-305 foot candles at 17.5 inches
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Growing orchids is not an addiction
but a disease,that,can not be cured
murray
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