Hi;
Agrosun are great,but not essential to growing orchids under lights.If you want to save some money next time on bulbs,you can mix one plant light(in this case agrosun)and one or more cool white bulbs.I've gotten consistently great results from this setup.
Also the lights seem to be too far from the plants,but let the plants tell you if they are getting too much light.
While light is very important,dont forget humidity,air movement (very slight is fine),and temperature requirements.
If you even pay a little attention to these factors,your orchids will thrive.
They are for the most part,very adaptable plants.
take care
Spiro
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