LED grow lights can be red and blue(purple), full spectrum lights. The full spectrum is the greatest choice.
Here are some tips to assist you in identifying full spectrum lights:
- Review the product’s specifications and features: In the description of the LED grow light packaging, search for the words “full spectrum” or “broad spectrum.” Identify them as full spectrum LED grow lights if you come across these terms.
- Light spectrum graph or chart: Almost all LED grow lights include one. A full spectrum LED light emits all colors of visible light, including red, blue, green, yellow, and orange wavelength. Far-red and UV are also included in this range.
- Plant response and development: Observing how your plants respond to the LED grow light can also reveal information about its spectrum. For instance, take a look at the plant’s robust growth, lush foliage, and timing of flowering. These signs suggest that the LED grow light offers adequate full-spectrum lighting.