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If there is something offensive in here, it's the use of electricity when there is a free light source around.
by greenemne 7y ago
If there is something offensive in here, it's the use of electricity when there is a free light source around.
- zeckalpha 7y agoSince plants absorb certain wavelengths of light, and LEDs produce certain wavelengths, it can be more efficient to grow plants with solar charged LEDs than with solar directly.