Depending on the strength of your light, you won't want to go higher than 30 inches (76cm) above your plants. The stronger the light, the further you'll need to hang it, so if you have a 1000w you may want to hang it at least 15" (38cm) away. When it comes to HID grow lights, it's best to keep them at least 12" (30cm) away from your plants at all times. On the other hand, T5 Fluorescent lights need to be hung closer to plants than HID’s in order to have an effect on them because the energy coming from T5's isn’t strong enough to get plants growing when hung from a distance of more than 12". LED grow lights, for example, need to be hung farther away from your plants than HPS/MH grow lights to avoid bleaching the canopy of your grow room from strong spectrums. Some lights offer more heat energy, and others offer better spectrums, and each needs to be hung in a different distance from your canopy: But to assure that your plants are getting exactly what they need- no more, no less- you’ll want to check the type of light you’re giving your plants: L.E.D., H.I.D., or T5 Fluorescent lighting. It means making sure they receive enough energy to grow quickly without overpowering them. But does that mean you should get more lights and hang them as close to your plants as possible without touching them? ![]() That's partially why growers say more light=better yields. If your indoor garden is supposed to mimic a plant’s natural (outdoor) environment, then the grow light is the sun from which everything grows- only you have control over what type of light and how much of it your plant receives. So before we start talking numbers, let’s talk about the idea behind hanging your grow lights: Why do different grow lights need to be hung at different heights? The distance of your lights to your plants is all about getting your plants the power they need to turn nutrients into food for growth. The trick is to hang your lights right in that sweet spot of effectiveness and safety. Some grow lights need to be hung far away from plants so they don't get bleached, but some lights are too weak to hang more than 10 inches away- so what do you do? Hanging your lights too low can burn your plants, but hanging them too high can leave them stretched and weak. But before you switch those lights on, are you sure you know how high you need to hang them above your plants? You set up your grow tent, set your plants in place, strap your rope hangers to your lights and hang 'em. ![]() You've got grow lights, your plants, all of your liquid nutrients, and everything you need to grow.
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