coral reef Posted May 1, 2004 Share Posted May 1, 2004 just a quick question about actinics bulbs that have a spec of 420nm will be more purple and one that have 470nm will be more blue is this correct someone please confirm Link to comment
coral reef Posted May 4, 2004 Author Share Posted May 4, 2004 come on now 22 people have seen this and not a clue Link to comment
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