When growing inside, you need to ensure that your grow room is light tight (meaning no outside light can enter). The light cycle of cannabis plants is very important to maintain. When even the smallest light reaches your plants during its dark periods it can severely disturb the plant’s growth. In the worst case, a plant can even be stressed into becoming a hermaphrodite.

Learn all about growing and lighting:

More lighting related terms:

Lighting | Light cycle | Dark cycle | Light shortage | Light distribution | Light spectrum | Blue light | Red light | NanometerLumen | Lux | Reflecting light | Lamp height

HPS lights | HPI lights | LED lights | Compact fluorescent lights

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