You just need to slowly work them up to it is all. However, just like people changed their minds regarding autoflowers, LEDs managed to turn around and produce great yields. LEC lights usually have proprietary reflectors, whilesome CMH lights use more typical MH/HPS reflectors. Thus with light sources rich in IR, an air temp of 78F is functionally 83F-85F to the plants metabolism. are up to par so make sure you have the knowledge and prepare your whole grow tent or grow room before spending $1000 on a LED. Note: As an Amazon Associate, GrowWeedEasy.com earns a commission from qualifying purchases. How Long Does It Take to Grow Weed Indoors? Start growing today and harvest before 4/20! If the temps exceed, Fortunately, you can play God when growing indoors and, LEDs exhibit similar tendencies and produce too much heat. For instance, a branded 300W light can cost anywhere from, even newer ones can reach up to $1000 due to the research they’ve made and the money invested in making the best possible fixture they can, If you dig a little further, you’ll be surprised – nay, shocked – to find out that some brands offer 1000W lights for just $70, and others sell the same wattage LED for up to. This field is for validation purposes and should be left unchanged. Where in the USA is Cannabis Legal to Grow? Some lights come with knobs that can be used to adjust the brightness of the light. Sun System LECs only come in 315W and 630W sizes, as do most CMH lights. Here are 10 things you should avoid doing when using LED and other Fortunately, you can play God when growing indoors and control the temperatures. LEDs with better features give you an advantage when growing cannabis. You get bigger yields and more potent buds by using powerful grow lights and keeping them, just the right distance away from your plants, test your current light levels with a lux meter. You get bigger yields and more potent buds by using powerful grow lights and keeping them just the right distance away from your plants. Fluorescent lights like T5s and CFLs typically can’t produce enough light to cause “light burn” the way you get with the other, more powerful lights. This is why many growers use T5 fluorescent lights, CFLs, and MH lights to tend to seedlings. Even though it’s not that common, some LEDs exhibit similar tendencies and produce too much heat. Light Bleaching – Although it was a comfortable temperature in the grow space, the grow light was too close, which caused the yellow leaves and bleaching on the buds, Learn more about cannabis light burn and other types of light stress, Compare Different Cannabis Grow Lights: Review. Increase Marijuana Yields Even More With Training! Even though it’s not obligatory, it’s highly recommended to grow autoflowers under LEDs because of the full-spectrum light they emit; Obviously, it’s better to use good quality bulbs than not-so-good LEDs because you can still get great results with light bulbs but due to the high efficiency and lower power consumption, a lot of growers are migrating to LED fixtures. (For the Biggest/Fastest Yields), 10 Cannabis Photography Tips & Tricks for Epic Cannabis Pictures. Light is vital in the photosynthesis process which is equal to food for cannabis plants, and it’s extremely important for autoflowering plants that have a short lifespan. Many growers use nail files to gently scratch the surface of the seeds, but do not do this if you’re fairly new. 315W is the most popular size for LECs/CMH grow lights. (Do I need side lighting?). If you do not… LEDs have come a long way since they were first introduced. This 315 LEC is being kept 2.5 feet (75 cm) away from the tops of these young plants until they get bigger. LEDs have been around for a while but only recently their popularity has increased, as technology advances, LEDs have been developed for other uses, and growers have benefited from that. This grower didn’t keep moving the 600W HPS light up as plants got taller, and some colas on the left plant got within 12″ (30 cm) of the bulb. They are not legal to germinate in most countries. Now let’s take all the GG goodness that has the cannabis world raving like crazy, let’s add autoflowering genetics and what we get is an autoflower that’s nothing short of amazing! What Causes Nutrient Deficiencies in the Flowering Stage? A technology once considered low-tech is now praised by indoor growers all over. They also produce relatively high levels of UV rays, which may contribute to increased trichome development on cannabis buds, and can potentially make buds more potent. But what exactly are LEDs? As long as it’s not too hot, you basically can’t give your cannabis too much light with these types of grow lights. If you’re using new bulbs, never start closer than the “~Sunlight” distance on the chart and only move lights closer if your plants are stretching towards the light (getting tall and lanky). I have a 600w LED (277W draw), and started my seedlings at 18" distance from it. Obviously they have their differences but are used to grow autos and photos alike, some growers even mix LEDs and light bulbs in the same tent with great results. They adjust to any growing condition as long as it isn’t extreme. Even as a beginner, you’ve probably heard of LEDs. Once you observe how the plants, Autoflowering cannabis plants thrive in environments where the temperature is neither too cold nor hot. Always read the instructions or ask the seller. A platinum strain, with more than a million sold all over the world! Training plants to grow with many colas of the same height (like the cannabis plants pictured below) allows dozens of buds to be the same distance from the grow light, so all the buds can be in the sweet spot at the same time! If you’re using older MH/HPS bulbs, you should replace them if you can, but if that’s not possible you can keep your bulbs closer to help make sure your plants are still getting good light levels. Therefore, make your life easier by purchasing lights with inbuilt fans to reduce the heat. Many things can affect the optimal distance from plants, including the individual size of each LED bulb and the way the manufacturer used lenses to reflect light downwards at your plants. As autoflowering plants do not rely on hours of light to tell them when to flower, they can be subjected to a 24- hours of light throughout their growth cycle. What's the Cost of Electricity to Grow Marijuana? Now that you know why LEDs are so awesome, you might be interested to know the disadvantages as well. Be sure to But, can you grow autoflowers with LEDs? Obviously, no artificial light can mimic the sun but when talking about a full-spectrum light it means that it emits the entire, Due to LEDs being more efficient, they can produce an equivalent to light bulbs using less energy. Copyright © 2009 - 2021. Here’s a quick reference guide to use as a starting point: 250W – covers 2′ x 2′ (0.6m x 0.6m) area up to 2.5′ x 2.5′ (0.8m x 0.8m), 400W – covers 3′ x 3′ (0.9m x 0.9m) area up to 3.5′ x 3.5′ (1m x 1m), 600W – covers 3.5′ x 3.5′ (1m x 1m) area up to 4′ x 4′ (1.2m x 1.2m), 1000W – covers 4′ x 4′ (1.2m x 1.2m) area up to 5′ x 5′ (1.5m x 1.5m). 4 - Easy Bud Auto. From dimming to power efficiency to a full spectrum, they appear to be the perfect companion to your autoflowering plants. “CMH” grow lights have been around for many years, and used to come in typical HID sizes like 400W, 600W and 1000W. However, a lux meter is accurate enough for indoor cannabis gardening when it comes to fluorescent, CFL, MH and HPS grow lights! LED’s emit no IR, so to achieve similar metabolic rates found in HID or greenhouse conditions at 78F air temp,LED growers need to run the room air temp at 83F-85F. Depends on if you’re using LED or HPS grow lights in your grow room or grow tent. . If you combine ample light with a traditionally high yielding strain, you can find something that produces at least average yields and potency in record time. The most amount of photo pigments are of the 650 and 475 nano meter scale or the RED and BLUE light so a light source with light mainly in these wavelengths would grow the best autoflower cannabis plants! For instance, some lights like HIDs emit a lot of heat and the temperatures soar pretty quickly. As the name suggests, autoflowering strains don’t require a change in the light cycle to enter the flowering stage. Although LED, LEC and HPS grow lights can produce the biggest yields and most potent buds of all grow lights, they need to be used correctly to get those results! Although it may be tempting to keep trying to move grow lights closer and closer, your plants simply can’t use more light past a certain point! Growing seedlings with LEDs can be a little tricky. This is why it’s beneficial to be able to test your current light levels with a lux meter. LEC stands for “Light Emitting Ceramic” while CMH stands for “Ceramic Metal Halide”. With fluorescent grow lights, it becomes especially important to learn how to use plant training techniques. If you invest a little more ina better quality you'll avoid having to fix it for a long time, usually branded LEDs are made with good diodes which can last years and years without a problem. When an electric current is applied over the light, the two semiconductors collide with each other and release energy, otherwise known as photons. There isn’t the best LED for autos, as longs as it’s a, Growing seedlings with LEDs can be a little tricky. Problems with individual diodes are more common with cheaper LEDs but if you can invest a little more and buy a good fixture it’s unlikely it will happen. Even if you use CFLs, “Cool Blue Daylight” lights are used specifically in the growing phase. However, if you plan to use LEDs for the entire cycle, you need to be very careful at the beginning. Recently, they almost always come in 315W or 630W sizes so they can compete more directly with the branded LECs. Light – cool LED or CFL lamps are good as are high pressure sodium lights. When growing with this type of LED, you can add complemental horizontal lighting with the proper led strip spacing or vertical lighting with light bulbs to provide good light to the lower part of the plants. Metal Halide lights are well-suited to the vegetative stage and tend to encourage plants to grow short and squat though they are less electrically efficient than HPS. HPS lights are suitable for both the vegetative and flowering stage of cannabis growth and the light they give off encourages plants to quickly grow tall and produce big buds. LEDs with fans help aid you when controlling the heat in your growing tent. Week 3 flowering 3 weeks of flowering Amount of light 100% Light distance 20 inches Light duration 12 hours Temperature day/night 77/64 Humidity 60% pH 6.0 EC 1.4 The root system of the plant has grown out and should come out of Depending on the make and model, there’s a lot of difference in operating different LED grow lights, but if you weren’t given any instructions with the light, here’s a quick reference guide: Powerful LED grow lights need to be kept relatively far away from your plants to prevent light burn, Learn more about growing cannabis with LED grow lights. The LEDs introduced at the very beginning weren’t of any advantage to a grower since the light output was meager compared to other lights; however, with technology and years of research, many manufacturers now produce outstanding LEDs that almost mimic the sun’s full spectrum. LEDs offer so many features that it can be mind-boggling. Here is … Smooth Leaves?! Manufacturers usually claim their LEDs are 1000W or 2000W but that’s actually the LED equivalent to bulbs, when looking to buy an LED, you should also look at the actual power that light fixture draws from the wall, this equivalent often differs depending on the quality of the diodes and efficiency of the light fixture. With this type of LED fixture, you'll get the most gram per wattage and efficiency but can be extremely expensive. In order to maximize your cannabis yields you’ll want to give your plants as much light as possible, but without causing light burn. Well, LEDs may be a little more expensive than HPS or HID lights when you first purchase them, but the, reduces cost in the long term, making LEDs certainly, The spectrum refers to a light source that covers the wavelengths that are useful to animal and plant life, from infrared to ultraviolet. Autoflowers are easy to grow, despite what you’ve been told. I can keep my light 24/0 and put girls in any stage. Some CMH models need to be kept 3 feet away from the tops of plants! If in doubt, keep LEDs further away – It’s very common for cannabis growers to believe that as long as the temperature is under control they can keep LED grow lights as close as they want. So the idea is to keep your plants as close as possible as long as the distance passes the “hand test.” You know your lights are a good distance away as long as you can put your hand where your plants are for 30 seconds and it doesn’t feel too hot for you. For example, plants need less light during the vegetative phase and more light during the flowering phase so to save energy and money they can be dimmed. On an 18/6 light schedule this would produce around 33 moles. Too far away, and your cannabis won’t get all the light that it needs, however, if too close, you risk giving your precious plants light burn . Lux meters have been calibrated to be accurate for incandescent light bulbs. Cob LEDs (aka chip on board) is a bit more expensive than standard lights but has a better penetration due to their intensity while being relatively efficient. Since LEDs contain all the colors (full-spectrum), there’s no need to switch the lights between phases. When it comes to distance, LEC grow lights produce an extremely powerful light and typically need to be kept further away from your plants than HPS grow lights of a similar wattage. The manufacturing market is saturated with too many LED manufacturers and it is indeed possible to purchase cheap LED lights. LED fixtures use up to 75% less energy while producing the same or even more light intensity. Conversely, they grow tall and lanky if the lights are far away. More light is better when it comes to yields, but unfortunately that’s only up to a point. If you have a Lux Meter to measure your brightness levels, you can get even more accurate with your grow light distance. Tip: In addition to knowing the right distance to keep your grow lights, many cannabis growers can increase their yields even more by using plant training to take advantage of that “sweet spot” where plants are getting the best amount of light. I have seen the charts for MH and HPS light distances. LEC grow lights are surprisingly powerful and must be used with caution to prevent light burn, especially with seedlings and strains that tend to be more sensitive to light. This is one of the biggest reason I love autos. As a result, the top buds … Wattage and Distance: How Far Should Your LED Grow Lights Be From Your Plants? By signing up for FastBuds emails, you'll be the first to know about exclusive deals, new product & more! Autoflowering plants can be ready to harvest in two to three months from seed and if the lights are on 24 hours a day that means about 1500 to 2000 hours of light for one crop. Our most powerful strain yet. They last for a long, long time with some lights continuing for more than 50,000 to 100,000 hours! To calculate the equivalent for your specific LED fixture you should divide the equivalent by the actual power to get the equivalent for 1 LED watt. They adjust to any growing condition as long as it isn’t extreme. Most growers seem to agree that the optimum amount of light to give auto-flowering strains of marijuana is somewhere between 18-24 hours of light a day. 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