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When choosing a grow light or lamp, there are three types to look out for: light emitting diode (LED), fluorescent, and high-intensity discharge (HID). 5 Botanist-Approved Grow Lights To Keep Your ...
Ficus plant grown under a white LED grow light. A grow light is an electric light that can help plants grow. Grow lights either attempt to provide a light spectrum similar to that of the sun, or to provide a spectrum that is more tailored to the needs of the plants being cultivated (typically a varying combination of red and blue light, which generally appears pink to purple to the human eye).
Traditionally, most growers change their plants lighting cycle to 12 hours on and 12 hours off since this works as a happy medium to which most strains respond well. This change in photoperiod mimics the plant's natural outdoor cycle, with up to 18 hours of light per day in the summer and down to less than 12 hours of light in fall and winter.
Plant Type: Certain kinds of plants really benefit from a grow light's attention. Pierre recommends using them on dieffenbachias, cacti, or other succulents, that like to drink up the sunlight.
High-pressure sodium (HPS) lamps have been widely used in industrial lighting, especially in large manufacturing facilities, and are commonly used as plant grow lights. They contain mercury. [23] They have also been widely used for outdoor area lighting, such as on roadways, parking lots, and security areas.
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