Light Cycles & Grow Light Comparisons


What up GreenBox Growers and welcome back to the most LIT Cannabis Grow Channel on YouTube! Now today I will be changing things up today a little bit and that I won't be covering one of my grow series, but instead I will be teaching you guys everything you need to know about lighting and growing cannabis. So this is going to include different light schedules for different types of cannabis plants, how you can use supplemental lighting for growing year-round for outdoor and using timers, and all of the basics to light schedules and stuff like that when it comes to growing cannabis. I will also be comparing and contrasting the different kinds of grow lights that are out there, such as CFLs, HPS, and LEDs, so that you guys know what the differences are and what is best for different situation so that you guys can pick the best light for your grow setup.

 Now as always before I get started I want with today's video I want to remind you guys that we do have a free trial going on right now to my one-on-one grow guidance, and basically the service is perfect for anyone looking to start their first cannabis grow at home or you've already started in our kind of struggling and need some help getting those results you want to get with your plants. So with the service I'll be helping you each day over the phone telling you exactly what you need to do to your plants, and you can see more details about that down below in the description at our patreon page. And you will also see that my contact information is there so feel free to hit me up about that free trial and more details on how to sign up for it. Also don't forget to check out our MERCH at the site, under merch and smoke, and now that you guys know what we're doing and today's video let's get started!

What up Growers now we are outside in the garage where I have my different grow tent set-up, and the first thing that I want to cover is the difference and lighting requirements for growing photoperiod Cannabis plants like I have right here, and then for growing Autoflower cannabis plants like I have in this tent right here. The biggest difference is autoflowers require at least 18 hours of light each day and then 6 hours of Darkness each day for the entirety of their grow. So I usually recommend starting with the 18-6 schedule while they are still getting used to the light, and then once they are bigger and have been in a little bit of veg that you can turn up that dial or amount of light that they get each day so I to Max of like 21 hours each day of light, and then 3 hours of Darkness. Because it is  important to give them a little bit of sleep, and that is where they recover and kind of regenerate so that they can grow faster later on. So that is also why it is good that they get some Darkness each day.

 Now and this time I've got another plant growing, and it is a Limoncello Haze, but more importantly it's a photoperiod plant. So with photoperiods, they require in the beginning or at least for their vegetative state, 18 hours of light each day and then six hours of Darkness. With cool about photoperiods is you can grow them in veg for as long as you want because by the name photo, which means light, they only start to flower once you change that light cycle from 18 plus hours of light a day to 12 hours of light and 12 hours of Darkness each day. Once you do that it will cause them to start flowering and start growing those buds wear with autoflowers they're going to start flowering no matter what.

 therefore the name Autoflower and that is why you stay with 18 hours and then crank it up a little bit as they get bigger, because the more light you do give them the better but like I said you don't want to do it by not giving them any time to rest during the dark period. So when it comes to Growing photoperiods of course you can grow them indoors or outdoors in a greenhouse as well, and when growing Outdoors if you're growing with the season you can do one Harvest a year. Going that route. Or if you go inside a greenhouse and use supplemental lighting, you can grow all year round.  So with photoperiods, I'm sorry with autoflowers you can't really grow outdoors unless you're in a greenhouse with supplemental lighting, just because you're not going to get 18 hours of light outside all year long. 

So I mean you're going to be lucky if you're getting 15 hours of light today anyways. So it's best to do it in door with some supplemental lights that you hang in the greenhouse, and that way you can get those buds big enough. Or you can just stick to growing autoflowers indoor strictly.  andSo I'm going to give you guys some close-ups on the LEDs in both tents, because they are a little bit different. So in this Autoflower 10 I've got two LEDs and I've got this viparspectra 900w led right here, and that's just a standard Panel LED with your red blue and white lights. And now the red lights, this has two switches one for flower and one for veg, So the red lights only come on during flower as that's the way length that is best for that wavelength is best for flower growth while the white and blue light as what's best for veg or vegetation growth. So that is what is on when that veg switch is on only. 

Now I've got the Mars Hydro 520 W I believe it is or what I forget, but same thing it's an LED with those tri-colored lights. Tri-color lights red white and blue and it does have that growth and Bloom switch on there but Mars Hydros Tend to be known for that extra purpley light so that's why I threw that in there for the addition only for flower. I didn't really need it in there for the veg growth.  Now here's just a quick look at these buds for you guys, that's some Tangerine Dream there right there Tangerine Dream, and then a little blue Amnesia in the front for you guys. Those are CFLs in the back right there and I only have them on for when I am filming. But those are also used for growing and I will explain more on that later in this video. 

So here we are over in the photoperiod Tent now with my  with my lemoncello haze mother plant now. And I've got this Bloom Beast LED it's a 525 Watt Limoncello Haze mother plant now. And I've got this Bloom Beast LED it's a 525 Watt. But as you can see here it's not just a regular LED or an LED with kennels it's got these for Cobbs and the different corners and those aren't on yet because this is one of those three dial lights. Where you have a veg sorry a Seedling a badge and a flowered dial, we're switch and right now I've only got the seedling dial on as this is a pretty powerful light. And that's how much Growth I am getting with just the seedling dial. And those cops only turn out with the veg switch, but Cobbs are great because it uses less power I think you have less diodes in there and it kind of has this magnifying lens on the outside of the light that causes it to almost have more power and to reflect. So those are great to when you are growing with LEDs.

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Another another thing I will explain this later, but one real good perk about growing with LEDs is they don't really give off any heat. So you don't have to account for that in the grow room, now if you are growing somewhere that is really chilly it might be nice to grow with an HPS because that is going to heat up the tent and make it so you don't have to add an extra heater or Appliance like that. So it just depends on your location and what's going to fit best for your needs. All right guys now I want to talk to you about your lights distance from the top of your plants as this is one of the most important factors when growing. So the distance is going to vary based on the amount of wattage of the light you are using, as well as how big your plant is and what stage of growth it is at. So for example HPS lights a rule of thumb as you can always use What's called the hand test to see if it's too close to your plants. Basically what that is is if you put your hand under the light at the distance the plants are from it, and it gets too hot for your hand, that means it is too hot for the plant and you got a raise it.

 Now with LEDs they don't get hot but you can have it too close to the plant and it won't feel too hot, but it is still burning them, so the hand test doesn't really work with LEDs. But with CFLs on the other hand those run really cool and they are not super powerful so you can actually get them up just a couple inches away from the plants and have no consequences with that. They will just grow fine, but on the flip side of that they're not that powerful so you can't really get your plans to Big under CFLs unless you have a bunch of them. Okay so with distance starting out obviously, the light is going to be the highest or furthest distance from the plants during the seedling phase, that's what's really cool about this Bloom Beast is I usually use a 45 watt LED for the seedling face. Just because they don't need that much light during that stage and it's better that you save a lot of electricity that way because you don't have to run your big LED and have it raised all the way to the roof just to try and not stress the plant.

So what's cool about these ones with dials is that they have a Seedling dial so you can turn down the power of your light a lot so that not only are you going to prevent your plants from being burnt but you will save on energy that way too and won't be in wasting or using unnecessary power. So the seedling phase Depending on the wattage, the more wattage the higher you're going to have it raised,  really I don't recommend using anything over a 3 or 600 watt light during the seedling phase, because with those you're going to want it 4 to 5 feet from the tops of the seedlings. Once you are in bed you can start lowering a little further you can have a 600 watt LED around three to three-and-a-half or four feet, in the beginning when they are smaller and as they Get bigger you know around 2 and 1/2 to 3 feet depending how many watts it is, and with HPS you can get them closer to the plants get bigger, but again you want to make sure it's too close because it can't burn them.

Now when it comes to flower LEDs are great, because then you can start lowering the lights a little bit each day, just so they get close enough to those buds to give them full growth and give them that Full amount of power. You can do that also with HPS lights also but you can't get too close because of the heat factor, and with CFLs it is possible to lower because they don't give off too much light and they just give off that blue. So CFLs are really better for veg only, Don't really want to use those during flower. Now I'm easy way to tell if your lights to close with things such as an LED, your plants will start to yell at the very top sites at the very centers first and that's just a sign that the light is stressing them in that it needs to be raised. So that is one way to tell if your light is too close and it is an LED so you can't use the hand test.

 Alright another crucial point I want to cover when it comes to using grow lights, is also using light timers. Now some people want to stay up 18 hours a day everyday turn their lights off and that's fine, but for others who want to sleep and don't want to stay up till 1 or 3 in the morning to turn the lights off for their plants, timers are a great option. So there are two different kinds I've got the wireless timer here that works with my smartphone so I can control it smart wirelessly or remotely from anywhere in the world, and then of course there are the hand timers which are the ones you just set with the dials and the buttons as such. And those work just as good also. So it's just depending on what your needs are but of course like timers are great because it saves you the touch the hassle of having to remember to turn the lights on and off everyday as well as they are going to keep that schedule perfectly lined up. And then of course for  your photoperiod plants, you have to switch that dial for flower obviously because your plans won't flower until you do so.

With the auto flowers if you want to increase the amount of light they get each day as they get bigger you're going to have to adjust that there and then I will also show you one of those dial grow light timers later as I have that upstairs in the seedling tent and we will be there shortly. So timers are very important when you are growing with a grow light and there is no reason not to have one. All right guys have for all my indoor Growers who happen to live somewhere where it is really hot frequently and you guys just have a really humid and hot climate. I suggest that you have your light schedule on during the night time so you don't have to account for those lights and their heat that they'll be giving off while they are on.

That way the lights will just come on at night when it's cooler weather wise, then it's not going to heat up the tent as much and then during the day the lights are off so it doesn't cool off too much or get too hot. If you were running the lights during the day then it would easily if you live somewhere where it's a hot climate, it's easily going to climb into the 90s and hundreds inside the tent and you don't want that.

So try Switching up the light cycle so the lights are on during the night and off during the day. The plants won't be affected by it if you make sure they only get light during the night cycle when the lights are supposed to be on and make sure there are no light leaks during the daytime when the lights are off. And you will be fine.

 Alright GreenBox Growers I am upstairs in my bedroom where the seedling tent is and that is what we are looking at right now. I've got my nuke head seeds that I have germinated and now I am growing through the seedling stage in here, you'll see I have two pineapple chunks, I've got two great babes, and then to Skittles. They are all going and they're all starting on their second set of families there. So you can see I just took the Dome off so I could give you a good close-up on them, but here are two different grow lights that I have this is a 45 watt LED right here. And then I've got another 45 right here and it's just an LED but you can see it's only got the white light. 

They both work really well and I'm using to right now just because they give both light spectrums that way and it gives them a little bit of faster growth. So I have to hang them up a little higher or raise them up a little higher because it is more wattage, but that is fine. It also helps with keeping it warm in this tent which is great. Now you guys are probably getting the idea of why a light like that bloom Beast with the adjustable dials on there or dimmable dials is so nice, viparspectra also has a line of those as well, but anyways they are nice because you don't have to switch out or change these lights and you don't have to raise them or lower them throughout the whole grow. You just put them at pretty much one distance and slowly adjust that dial and then turn it up when they need it and you can raise the light of course once they get taller. But it makes things really easy and you only have to have one grow at that way which is really cool.

Alright so now I want to cover the main grow light options that are out there for you guys and kind of just explain the pros and cons of each one. So first there is CFL or T5 lights which are pretty much the same thing but they are different in that the T5 come in strips while the CFLs are kind of those Corkscrew looking lights. Those are both great really good for beginners because they are cheap introductory lights and like I said they are low-power so because of that you can get them really close and not worry about them burning, but that also means you are going to need a lot of them to get some decent growth and less you are just trying to grow some smaller plant. 

So that is why they are good for beginners and they are also good for really small areas or Grow rooms because like I said they are not going to heat it up or burn anything because you can get it close to the plant. But they do have poor penetration of the canopy meaning they are not going to get light to that lower growth below. So like I said you are not going to be growing super large plants with the CFL or T5.

All right guys now I want to move on to the next category of grow lights that I'll be covering in this video, and that of course it's going to be hid or high intensity discharge lights. Alright guys so these are the kinds of Lights I was talking about that give off a lot of heat, so you have to keep them kind of further away from your plants, but that can be a good thing like I was saying if you are somewhere that is colder. Now the claim to fame that HID lights have is that they yield the most per watt when growing cannabis, even more than when growing with LED lights. So it hasn't really been proven like a solid fact but a lot of people have confirmed that and I have actually noticed those kinds of results, but I do prefer LEDs for beginners just because the ease-of-use and the beginner friendliness. And how easy they are to set up and prevent from damaging your plants.

Now HID lights also require a ballast or some sort of reflector hood or Wing, so they can be on the little more on the expensive side and difficult to set up, but like I said you do tend to get those bigger buds or more yield per watt. Now with LEDs they do say you get more resinous buds, I don't know how true that is but that is what I've heard from several Growers and again hard for me to compare it without doing some sort of scientific test which I haven't done. But HID lights or high intensity discharge like I said that includes your HPS or high powered sodium light and then you're MH or metal halide light.

So that is another kind of Khan about HID lights or the HPS lights is that you do have to switch out the bulb when going from veg to flower and you do have to kind of replaced those light bulbs not very frequently, but it is something you have to replace every grow or two. So that is your HID light, and the next of course is LEDs which is like what I was showing you guys downstairs and this one in the front here and the difference is that these are panels that have diodes on them giving off a different colors or wavelengths of light. So with the LEDs not only are you getting that white and blue wavelength but then for flower you're adding in that purple kind of violet red color and that's kind of one of the improvements or prose to an LED over an HPS light is that you can add that flower or wavelength of light.

Another thing that is great about LEDs is they are easy to use out of the box like I said no reflector or ballast needed, like I said you just take it out of the box and hang it up and plug the light in and you're good to go. And like I was saying with the HIDs, those give off extra heat wear with the LEDs they don't. So you don't have to worry about adjusting the climate in your grow room for when the light goes on and off because it's not going to be swinging the temperature very much. Finally, LEDs are very thin like you can see because they have the panel shape so you can raise them really high up and they don't take up much space, where other lights like the hid or HPS lights, those are a little bit taller and bulkier so they do take up a little more space.

 All right folks that is pretty much everything that you need to know about light cycles and growing cannabis, as well as all the different kinds of grow lights that are out there and how you can decide on what is going to be best for your grow setup. As always if you enjoyed the video please smash that thumbs-up button and don't forget to leave a comment below with your feedback. Also feel free to subscribe to the GreenBox Grown Channel and to turn on those notifications for updates for my latest grows.  As always thank you guys for watching, and until next time...

Happy Growing!!!
Dylan @ GreenBox Grown