By now most growers know the benefits of using LEDs for indoor growing—no scorching hot grow bulbs, lower power bills, healthier plants with superb taste and scent. The jury is still out on some other benefits, such as the LEDs’ ability to deter pests and bacteria.
What we do know is that LEDs are an excellent way to substitute away
from energy-intensive HPS and metal halide bulbs; that is only if your
light can produce enough of a harvest.
With more and more states legalizing, cannabis cultivators and connoisseurs are turning to LED grow lights in significant numbers for their indoor grows. Is this a fad or is LED technology the future of indoor growing?
As more indoor growers can produce a top-shelf product, the tide has turned in favor of the LEDs. Here we provide some critical considerations so you can choose wisely when investing in LED grow lights.
For many years LED grow lights were not producing the same yields as their high-pressure sodium counterparts. Grow light technology has advanced considerably and top-shelf LEDs like the G8LED 600W Veg/Flower with UV and IR are able to provide comparable yields to the tried and true 1000W HPS bulbs.
This fantastic light produces healthy plants with vigorous growth and tight intermodal spacing for fuller yields. The advantage of the LED is that it operates at a much lower temperature, consuming less than half the electricity and gives the grower more control over his plants. With these lights, cannabis plants grown indoors will have a superb scent, flavor and frostiness.
For each square foot of growing space, there should be 20 or more watts (measurement of power) being consumed by the LED grow light. For a 4-ft by 4-ft grow space (16 square feet), your light should have a power draw of at least 320 watts.
Keep in mind that the power draw of the light will be lower than the wattage in the name. Manufacturers tend to name LED grow lights by the total amount of wattage in the chips used, even though those chips are never operating at full capacity. The actual power usage will always be less for design safety.
The wattage, or power draw of usage, is the number that should be
considered when calculating 20 watts per square foot of growing space.