TIP: Place grow lights directly over plantings to mimic natural sunlight. As a rough guide, incandescent grow light bulbs should be at least 24 inches over your plants. Fluorescent and LED lights have a lower heat signature, so they can be placed 12 and 6 inches over plants respectively.Click to see full answer. Likewise, how far should LED light be from seedlings?The G8LED 240 Watt LED Grow Light is for 2-4 mature plants, with a distance of 12-24 inches from the top of the canopy. The larger G8LED 450 Watt LED Grow Light is for 4-8 mature plants, with a distance of 14-30 inches from the plant canopy.Also, are LED lights good for growing seedlings? LED Grow Lamps LEDs designed for growing plants emit light in the two bands that plants need – red and blue. These bulbs are long-lived (up to 5x longer than fluorescent lamps) and very energy efficient, but they cost considerably more than fluorescent bulbs. Regarding this, how close should grow lights be seedlings? For seedlings, keep the lights at least 8 inches away from the top leaves. If the plant starts to dry out, move the light a bit farther away. For vegetative and flowering stages, the distance the lights should be from the plant depends on the wattage of the bulb.Can seedlings get too much light?Plants cannot get too much light, but they can get too much of the heat energy that comes with the light. Photosynthesis and other plant growth processes will shut down when the environmental and tissue temperature gets high enough that all the water taken up by the plant is used to cool the plant tissue.