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Best grow lights for seedlings 20209/25/2023 This grow light regulates temperature internally, so it requires no fan, ensuring quiet operation.įrom a horticultural and budget standpoint, the Mars Hydro TS1000 was our favorite LED grow light. Use a single lamp to cover 6.5 square feet for the flowering stage and 9 square feet for the vegetative stage. The lights are dimmable and have daisy-chain functionality to connect a maximum of 15 units using only one electrical outlet. (For an in-depth description of this measurement, see the section on Power below.) It produces full-spectrum white light and can encourage plant growth at every stage of the growing process. This energy-efficient light uses only 150 watts of actual power, with a PPFD of 743 micromole/m2/s at a distance of 18 inches. The spread-style Mars Hydro TS1000 LED grow light is a panel fixture that features 354 tiny LED bulbs. Read on to find out how they performed in our growing tests and to see which ones we recommend for different growing situations. The following reviews outline our choices for top-notch LED grow lights in various categories, with lights available in a range of price points. Each of the LED grow lights in our test group proved to be very effective for its intended purpose. Every 3 days we noted any observations, such as leaf color changes, bud or leaf growth, and changes to leaf or stem shapes. We watered and fertilized the plants as we would typically. To evaluate each light’s effectiveness, we placed one 6-inch houseplant per square foot of “light footprint” beneath each of the lights. To test the models designed to provide all of the lighting requirements for plants to thrive, we made a growing area in our basement with no windows. For those designed to provide supplemental light for indoor plants, we used a room with an east-facing window but inadequate natural light for average houseplants, setting up a growing area on the wall opposite the window. We set up two separate trial areas in order to test each model according to its type and capability. These picks include options that will satisfy a diverse range of indoor growing needs, including seed starting, supplemental lighting for foliage or flowering houseplants, adjustable full- spectrum lighting for intensive hydroponic production, and more. Our selection criteria included light spectrum and balance, as well as actual power draw, plus the type and intended purpose of each light. Photo: Mark Wolfe How We Tested the Best LED Grow LightsĪfter researching 42 LED growing lights, we chose the 11 in this guide for hands-on testing.
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