For a 4x4 grow tent (approx 4ft x 4ft or 1.2m x 1.2m), an LED wattage between 400 and 600 watts is generally recommended. Some specific recommendations:Vegetative Stage: 200-400 wattsFlowering Stage: 450-600 watts, ideally 480-520 wattsMore specifically, an LED grow light in the 450-600 watt range works well for flowering...

Yes, LED grow lights can potentially be harmful to your eyes if used improperly. These are the reasons:1. The bright light can damage your retina (the back of your eye). Grow lights are very bright and this intense light can hurt your eyes if you look at it for too...

For seedlings to grow best, use a grow light that gives a mix of cool blue and warm red colors.The blue light helps seedlings stay short and sturdy, with strong stems and lots of leaves.The red light helps the roots grow big and strong, giving the seedlings energy to grow...

Grow lights should be kept fairly close to seedlings, but not too close or they will burn the delicate young seedlings. The optimal spectrum for seedling growth is one rich in blue wavelengths, which promote strong, compact growth.For LED grow lights, start with the lights about 2-2.5 feet (60-75 cm) above...