Quality LED grow light manufacturers produce fixtures that provide several shades of blue and red light. Additionally, the best LED grow lights also have some white LEDs.
LED growing lights have come a long way since they were first introduced. Today’s LED lights give you yields equal to, and in some cases better than, HID lighting. They are simply far more efficient.
But plants do want that light. Sure, they don’t want as much of it as they do of light in the red and blue wavelengths, but they do still want it. That is why the best-selling LED grow lights these days all include white LEDs on their lights. And many use mostly white LED light.
You may have noticed that most LED lights have two different wattage figures. One of these is the potential wattage and the other the actual wattage. The potential wattage is the wattage the light could run at if the LED chips were running at full power. For example, a light with two hundred 3w LEDs has a potential wattage of 600.
Common Uses For LED Grow Lights
Modern light emitting diodes are capable of handling veg and bloom.
In the past five years, tons of brands have flooded the market with low-cost LED grow lights that are practically useless. They either only veg and do not have to light intensity required to flower plants, or they simply use the wrong spectrum to be of any use.
LED plant lights are commonly used for the following applications.
Pay a little more for a huge jump in quality, in terms efficiency and light spectrum. If you are not willing to do that, you are not yet ready to switch to LEDs.
Newer versions of these boards also have some additional red or blue diodes to boost the output in one of those colors. The red RSpec fixture pictured above, for example, features additional red diodes for a flowering boost. There is also a blue BSpec version that has added blue diodes for a boost during vegging.
HID (high-intensity discharge) is an umbrella term under which MH and HPS bulbs fall, which we’ll discuss more below. These types of lamps have a hood that reflects light and bulbs that are enclosed capsules containing a gas, as opposed to bulbs you’d find in your house, which have a filament that heats up.
The first thing to consider before buying a grow light is how much money you want to spend. With more states coming online with adult-use legalization, homegrowing is becoming more popular and growing technology is getting better and more efficient all the time.
When growing outdoors you can harness the power of the sun, but in an indoor environment, sunlight is mimicked through the use of grow light bulbs, which aim to display the same spectrum of light as the sun.
Types of marijuana grow lights
There are many types of lights, but below are the four most common you’ll find in a grow room. There are many variations within each of these four types as well, and new lights and technology come out all the time.
Aside from the price of the actual light, also take into account utilities—all lights will add to your electricity bill every month, but some more than others. High-intensity discharge lights—known as “HIDs”—may be cheaper to buy but can gobble up electricity, whereas LEDs are more efficient and kinder on your electricity bill but usually more expensive to buy.
How much does a grow light cost?
Here are a few different CFL grow lights at different price points.
Consider how often you’ll be growing weed and how long it will take to pay off the initial investment—if you grow once a year, it’ll take a lot longer to pay off an expensive light than if you grow multiple harvests a year.