Understanding Grow Light PAR, PPF, PPFD and PPE

If you are not a professional optical engineer or plant expert, when you are browsing grow lights, you are likely to be confused by the acronyms of professional terms such as PAR and PPFetc.Today let's take a look at these important metrics about grow lights.



What is Grow Light Spectrum?

In short, the definition of the spectrum is the component information contained in light. According to the energy corresponding to the photon (usually expressed by wavelength), light can be classified. The wavelength ranges from short to long, followed by three sections of ultraviolet light, visible light, and infrared light. Different colors of visible light correspond to different wavelengths of light. The spectrum is the ratio information for each wavelength component in the light. The general expression method is the wavelength on the abscissa and the relative intensity on the ordinate. Such as sunlight spectrum.