This guide covers full-spectrum LED grow lights, including PAR/PPFD metrics, recommended distance from plants, and energy efficiency comparisons. Whether you are starting seeds or supplementing winter light, the right grow light makes the difference between leggy seedlings and strong growth.
What are grow lights and how do they work?
This guide covers full-spectrum LED grow lights, including PAR/PPFD metrics, recommended distance from plants, and energy efficiency comparisons. Whether you are starting seeds or supplementing winter light, the right grow light makes the difference between leggy seedlings and strong growth.
What is the difference between LED, fluorescent, and HID grow lights?
LED grow lights dominate the home market for good reason: they use 60% less energy than HIDs, produce less heat, and last 50,000+ hours. Full-spectrum LEDs (3000K-5000K) support both vegetative growth and flowering. Fluorescent T5s work well for seedlings and herbs within 2-4 inches. HIDs are overkill for most home growers.
What size grow light do you need per plant?
For a single houseplant: 15-20 watts LED. For a 2x2ft grow area: 100-150 watts LED. For a 4x4ft area: 300-600 watts LED. Measure the PPFD rather than wattage. Target 200-400 umol/m2/s for leafy greens, 400-600 for flowering plants.
Which brands offer the best grow lights for home use?
Spider Farmer SE3000 ($279) offers excellent value for 2x4ft areas. Mars Hydro TS1000 ($159) is the go-to for beginners in 2x2ft spaces. For smaller setups, Sansi 36W LED bulbs ($25 each) screw into standard sockets and work well for 1-2 plants.
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