How Many LED Watts for 4x4 Grow Tent? (Quick Answer)
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 watts
Flowering Stage: 450-600 watts, ideally 480-520 watts
More specifically, an LED grow light in the 450-600 watt range works well for flowering cannabis in a 4x4 tent, with 480-520W being the most popular and recommended target wattage by experienced growers.
A quick reminder, make sure to put on safety glasses or goggles before going into the grow tent. The extremely bright grow lights can damage your eyes if you don't protect them properly.