Indoor cannabis cultivation requires specific types of light at different stages of growth. Each type of light has a distinct role in promoting the plant's development. Below are the main types of light used in indoor cannabis cultivation and their respective functions:

Blue Light (440-470nm)

Function: Promotes leaf growth and photosynthesis.
Usage Stage: Seedling stage and vegetative growth stage.

Red Light (620-700nm)

Function: Promotes flowering and fruiting.
Usage Stage: Flowering stage and fruiting stage.

Ultraviolet Light (UV light, <400nm)

Function: Enhances plant disease resistance and may increase THC content.
Usage Stage: Throughout the growth stage, but use cautiously to avoid plant damage.

Infrared Light (IR light, >700nm)

Function: Promotes cell elongation and increases temperature.
Usage Stage: Generally used in the later stages of growth to help increase plant temperature.

Green Light (500-550nm)

Function: Although plants absorb green light less efficiently, it can penetrate the canopy and reach lower leaves, promoting uniform growth.
Usage Stage: Throughout the growth stage.

White Light (Full Spectrum Light)

Function: Provides an environment close to natural sunlight, contributing to overall plant health and growth.
Usage Stage: Throughout the growth stage.