The Cannabis Growers Community
A 400w Metal Halide, can be used in 1m x 1m x 2m grow tent. Usually when plants are in late veg.
MH bulbs gives off light in the blue spectrum. The wattage can differ from 250w, up to 1000w. Bigger bulbs will be used in bigger grow rooms.
These lights are in the HID category, and will use up a lot of electricity, and produce a excess heat. So it is important to ensure you have suitable extraction., when using this kind of grow lighting.
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HID Lighting is the most common type of light to grow cannabis indoors. It has been around for a long time, and growers have always produced great results when using HID lighting for growing cannabis. This keeps HID’s at the top of the list for favourites amongst growers. The term HID stands for High Intensity …