fluorescent bulbs and replacement
I have four 48" bulbs for my orchids and I replace one bulb a year. I get my replacement bulbs from either walmart or home depot. Here is my lighting schedule: Nov.-jan. 16 hours/day (spring), feb.-june-18 hours/day (summer), july-august 16 hours/day (fall), sept.-oct. 12 hours/day (winter). I have mostly cattleyas and dendrobiums and they all seem to be happy.
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