1000W Grow Light Coverage: Final Thoughts If you get a good quality 1000 watt grow light, it will cover an area of about 25 square feet for flowering a plant like marijuana. This is true whether you get an LED grow light or an HID grow light.

So, how many plants for a 1000 watt HPS bulb should be around 5 by 5-foot area or 25 square feet. Even though everyone has their methods, it all balls down to what method works for you. Some growers have boasted of growing about 6 to 9 plants using 1000 watt HPS.

The yield from a single 1000w lamp is about 2 lbs per harvest. For me, sometimes 1.5 Lbs and sometimes 2.25Lbs max. Each strain has different yields.

In response to the general question, can you use an HPS bulb for veg, the answer is yes. Basically you can use just about any light out there for any stage of growth, the real question is how well do each bulb work for veg.

around 49 square feet
1000-Watt HPS grow lights are the most powerful and cover a wider area of around 49 square feet.

HPS lights should not be placed inches from the plants, as you would place fluorescent lights; you should set HPS lamps higher, generally between 5 and 8 feet from the plants. Whether you have a reflector with your HPS light makes a difference for how close you can keep it from the plants.

While either type can be used for the full growing cycle, when combined, using an MH grow light for vegetative growth and flowering under an HPS grow light is the most recommended HID grow light setup because utilizing the strengths of both types at the right times produces the best results.