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Proper Distance to Hang Full Spectrum LED Grow Lights

Keeping the proper distance between your full spectrum LED grow lights and your plants is important to robust photosynthesis and growth.  Your LED grow light provides the wavelengths of light your plants need for growth and flowering. G8LED grow lights are formulated to the photosynthetic activation radiation (PAR) wavelengths necessary for plant growth.  Plants will reach for the much coveted light source just like they grow towards the sun in outdoor conditions.  The general rule of thumb is to increase the distance between the top of the plants’ canopy and the light source as the light becomes more intense. This means that hydroponic LED grow lights of different power ratings will perform best at different distances.

The G8-240 should be hung 16-24 inches from the top of the canopy. The G8-450 should be hung at 20-30 inches from the top of the canopy. The G8-600 should be hung at 24-36 inches from the top of the canopy and the G8-900 should be hung 26-42 inches from the top of the canopy of your plants. Maintain these distances as your plants grow in the vegetative stage. For plant stretching increase the distance from the the plants to the light. For shorter, bushier plants decrease the distance. As you raise the light, the plants will reach for the source and grow taller. If you keep the light fixed, the plants will grow tall to a certain point, then grow wider and more dense. Putting lights too close to the plants may be too intense and stunt growth and create discoloration. It is best to follow the recommended distances and adjust as necessary. During flowering the lights can be left at a constant distance.

G8-240 LED Grow Light hanging distance 

G8 240 watt LED grow light hanging 24 inches above tomato plants.

Since LED grow lights emit 90% less heat than traditional HID lighting such as high pressure sodium or metal  halide  bulbs, your plants will not dry out or burn if you happen to place your LED grow light to close to your  plants. However,  your  plants’ growth will be stunted if the light is hanging too low. Within a week you will  notice that your plants are not experiencing robust growth and the leaves may become discolored. If you do  experience this result, adjust by increasing  the distance between your light and the plants. Follow the recommended hanging  distances and your plants will thrive in your grow room. You can also check our blog post titled proper distance to hang your LED grow lights.