I have seen comments on florescent lighting and seed starting in various threads recently. It has been my understanding that the more expensive grow lamps sold in most hardware stores are actually less beneficial to seed starting than the combination of a soft white and 'warm white' light. I have read that one of each is the best combination to use when using the two bulb shop lights. The problem I have is defining what is 'warm white'. I don't see any labels as such and there is a wide spectrum of lights with increasing "K" values. Assuming the higher the "K" value, the closer you come to actual sun light. I think we could use some clarification on this subject.