LED grow light technology is relatively new. One of its advantages is the ability to produce a multitude of different emission spectra.
A traditional grow LED grow light typically uses a combination of blue and red LEDs. The reason traditional LED grow lights use this formulation is that plants perform photosynthesis most effectively in the blue and red part of the spectrum.

Is full spectrum better for crops?
Full spectrum is close to the sunlight, which is suitable for all crops in a broad sense. But plants have varied needs for spectrum at different life stages, a designed light recipe can better increase the yield and improve the produce quality.

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