A 100 watt bulb was always brighter than a 60 watt bulb.
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I surrounded the area with white cardboard and had a rotating fan inside that I moved periodically.
Is the effort for a home gardener worth it, to get enhanced results? Since most of these lights contain a lot of blue and red bulbs the result is a burple.
When storing potatoes, keep them in the dark, and cool.
These are not suitable for growing more than a single plant.