The downside to CFLs is they aren’t great for flowering plants, and growers will usually use another type of light to finish plants. CFLs just don’t generate enough intense light for plants to pack on weight.
LEDs (light emitting diodes) are relatively new to the cannabis growing world, compared to HPSs, MHs, and CFLs, but they are quickly proving to be the way of the future. LEDs may be more expensive to buy initially, but they are far more efficient and kinder to the environment and your electricity bill. Some cities even give tax breaks to commercial growers who install or switch to LEDs because they’re better for the environment.
Both types of HIDs are usually inexpensive to buy but will eat up electricity. HIDs throw off a lot of light and heat, which the plants need to bulk up and get potent. But, they run hot, contain heavy metals, and ballasts can fail.
Here are a few different HID grow lights at different price points.
Best HID grow light brands
Ventilation is also a concern. If you’re growing in a tight space with a light that runs hot, you’ll need to have fans in there, which also take up space. If there’s not enough room for a light and a fan, you may need to invest in a light that doesn’t run as hot, such as an LED. For example, grow tents are usually built tall to allow room for equipment up top, not to grow plants all the way to the ceiling.
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.
How big a light you need will depend on the number of plants you plan on growing, but also on the size of your space. If you’re growing in a closet or a small grow tent, you’ll only be able to fit one small light in there. If you have a wide open basement, you could invest in a bigger light as opposed to two smaller ones.
Best CFL grow light brands
The typical homegrower will only need one or two lights. Most states limit grow amounts to 6 or 12 plants, and one or two lights should be plenty for that. If you plan on running two separate rooms, one for vegetative plants and one for flowering plants, you’ll need two lights.
You can find lights for under $100, but they may be low quality and not produce the right spectrum of light, and you can also easily spend as much as $2,000 for a large, state-of-the-art LED.
The use of LED grow lights for medical cannabis is not common for everyone in the branche, but the production of medicinal cannabis can perfectly be executed indoors with LED lights.
Consistent optimum level of light
The biggest benefit of the use of cannabis greenhouse LED lighting, is that you can control the light levels the plants receive. The time of day or season will no longer influence your yield. Due to the water cooling, the indoor facility doesn’t heat up and the climate remains stable. This is beneficial because the lighting hours can increase so the plants receive more light and that means more yield!
Perfect growth conditions and prevent botrytis
The use of LED lights for growing medicinal cannabis, enables you to create the perfect circumstances for the plants. You can adjust the light output to the plant’s growth phase. The seeds need lighting from the moment they have germinated, but cannabis plants in the vegetation stage need a lower light intensity or different spectrum than plants in a flowering stage. Botrytis causes a soft rot that damages cannabis buds during growth and after harvest. It usually occurs when temperature and humidity levels are high. With a sudden drop in temperature, the humidity from the air condenses and descends like water on the plant. This could occur when lights are turned off. Oreon's LED grow lights do not radiate much heat, keeps the temperature stable and therefore a better controllable RH. Growing cannabis indoors with LED lights empowers you to provide the cannabis plant with the right temperature and amount and intensity of light.
The most important thing to remember about choosing LED grow lights….
How Far to Keep from Plants: 20-28″ for the vegetative stage. 18-20″ away in the flowering stage.
Actual Power Consumption: 274W
Unlike CFLs, LEDs don’t need to be adjusted almost daily
Kind LED Grow Lights
I’ve seen many growers choose to mix LEDs with their HPS bulbs. In fact, combining MH/HPS with a quality LED panel may be a great way to improve the quality of your harvested buds. There are lots of growers who claim that LEDs increase potency and density, as well as bring out the natural smell/taste of your strain. On the flip side, some growers believe that HPS tends to produce “prettier” buds.
Grow Space: 2’x2.5′ or 2.5’x3′
Cannabis plants grown by depthchargeseeds under an HLG 300 Quantum Board LED grow light (check out their Instagram profile!)
3.) COB Style
Average Yields: 8-16+ ounces – keep in mind that the strain (genetics) and any plant training you do will make a huge difference in your final yields. This LED model has performed better than most others I’ve tried so far.
What’s the difference between buds grown under LED grow lights compared to buds grown under an HPS grow light? Do the buds look/taste/smell different?