Advice For Best Lights?


#1

A customer has a question and I hope we can get some opinions on it, thanks.

“what kind of lights are best and where do i get them?”


#2

It depends on what type of light you want to use theirs LED there’s fluorescent there’s CFL there’s And I can go on and on it depend on your space and how much you are planning on growing


#3

where to start to many options
What size grow space??


#4

Im at 30" tall 36" long and 16" deep and need help with light selection. Dwc is a 6 gallon resivor are 3 plants possible in there or just 2 i will be using scrog


#5

OK DWC really isn’t for me but we have some great DWC peeps who can better assist you… urmm i know @peachfuzz is definitely DWC maybe they can assist you more, there is a few more but damn i forget names


#6

My name is " Will " and I would like to welcome you to ILGM
" WELCOME "
Here is a list for you to look over…

In order to thrive and grow, your weed needs…

Light (brightness has a huge effect on yields)

                                      1.) CFL Grow Lights

CFL grow lights are the twisty-looking bulbs you can find anywhere you normally buy light bulbs. They produce a great spectrum for growing cannabis and can be used in tiny spaces where no other grow light would fit such as the inside of a cabinet.

Keeping CFLs close results in the best yields and growth

                                      2.) T5 Grow Lights

T5 grow lights are one of the most easily available types of grow lights and are used to grow many different types of plants. As a result, they’re available in many garden and home improvement stores.

T5s are much bigger/wider than CFLs and usually come as part of a panel, but they can still be kept mere inches away from your plants without worrying about burning them.

These cannabis plants are thriving under T5 grow lights

       3.) High Intensity Discharge (HID) Grow Lights

HID grow lights are much more efficient than fluorescent lights and are powered by large, oddly-shaped bulbs. They are usually screwed into a reflector or hood to reflect more light down onto the plants. HIDs are great at growing cannabis, but they also get very hot and are usually hooked up to an exhaust to help vent out heat

             4.) Metal Halide (MH) Grow Lights

Metal Halide grow lights are generally used for the vegetative stage because they produce a bluish light that vegetative plants love, though this type of light can also be used all the way to harvest.

The light from a Metal Halide appears a little bluish, and is well suited to growing cannabis plants in the vegetative stage

            5.) High Pressure Sodium (HPS) Grow Lights

High Pressure Sodium grow lights are often used during the flowering stage because they are very efficient and their yellow light stimulates bud production. HPS grow lights in the flowering stage get better yields per watt of electricity than any other type of grow light available today, which is a big part of why they are so popular.

The light from an HPS appears yellow, and is great for flowering plants because the light spectrum stimulates bud production

6.) Ceramic Metal Halide (CMH) & Light Emitting Ceramic (LEC) Grow Lights

These are actually just two names for the same thing. This type of metal halide bulb uses ceramic as part of the lamp just like an HPS. As a result, CMH bulbs are more efficient than regular MH lights (though still not as efficient as HPS bulbs).

Lately I’ve been seeing CMH grow lights these labeled as “LEC” lights, which stands for “Light Emitting Ceramics.” Since LECs are the same thing as CMH lights, personally I think the term “LEC” is used to make this seem like some new type of light, and in order to ride on the popularity of LEDs…

“LEC” and “CMH” both refer to Ceramic Metal Halide grow lights, which is a type of HID light that is a bit more efficient than a regular Metal Halide light
High Pressure Sodium grow lights are often used during the flowering stage because they are very efficient and their yellow light stimulates bud production. HPS grow lights in the flowering stage get better yields per watt of electricity than any other type of grow light available today, which is a big part of why they are so popular.

The light from an HPS appears yellow, and is great for flowering plants because the light spectrum stimulates bud production

                 7.) LED Grow Lights

LED grow lights are very popular among cannabis growers as an alternative to HPS grow lights. They tend to run cooler and also usually come with built-in cooling. They can often be plugged into a wall and simply hung over plants which is definitely easier than setting up an HID grow light. LEDs also have great penetration so they don’t need to be moved frequently like fluorescents.

Simply hang an LED light over your plants and start growing!

   Example of MH/HPS Setups That Yield 1-5 Ounces/Month

250W HID

1-2 oz per month
Electricity: $69/month (including electricity for fans)
Initial Setup Cost: $605.00

400W HID

1.5 - 3.5 oz per month
Electricity: $96/month (including electricity for fans)
Initial Setup Cost: $744.00

600W HID

2.5 - 5 oz per month
Electricity: $128/month (including electricity for fans)
Initial Setup Cost: $780.00

There is a larger size MH/HPS grow light available (1000W), but at that size it starts going outside the scope of a “hobbyist” grower as far as ease and yields. In addition to needing a lot of extra cooling which costs electricity, a 1000W HPS grow light is less efficient compared to a 600W grow light (as far as how much light is put out for electricity used). I think most hobbyist growers would be happier with a 600W, or even two 600W lights, over a 1000W :slight_smile:

HIDs are very well suited to growing cannabis and very easy to use once they’re set up. If your main goal is to get the highest yields possible, then HIDs are the way to go! However, they do require extra setup compared to the other grow lights because chances are you will need a fan to vent out heat from your grow space

Air (fresh air with a slight breeze is best)

a Grow Medium (place to grow, soil isn't your only choice)

the right Temperature (room temperature or a little warmer is perfect during the day, cannot stand freezing at night) 

Nutrients (start at half as much as what's recommended on the package)

Water (maintain pH for best results, soil likes 6 - 7 pH & hydro likes 5.5 - 6.5 pH)

Whether growing marijuana plants indoors or outdoors, you will need to ensure that it gets the proper amount of these six resources. You will be rewarded with big colas!

Big cannabis cola in hand


#7

Great post Will! @garrigan62


#8

Thank you Matt

Will


#9

G’day will,bob the sponge here,mate just checking out your post on lights. Mate should have been sparky,you certainly switched on when it comes to lights. Just a question about autos. WW to be exact. Once germed and poking their heads out.is it worth buying some sort of fluro or MH to assist in veg or outside in as much sun as possible. Here in aus days getting shorter,do you think they will do ok just in sunlight. Yours humbly, bob


#10

Hello there Bob. I use the t-5s 2feet long for my seedlings and clones

When vegg starts i switch to 400 watt hps

Flower i use 1000 watt hps

hope this helps

Will


#11

Great post @garrigan62 :+1::ok_hand:… However, @Lilpaul3986 is gone a most probably have big space problem, espacelly in height, he only have 30"… with his intention to grow in a 6 gallons DWC bucket , that have at least most probably 15" in height .

So, there only left 15" for the plant to grow and for the light system. The only choice you have, @Lilpaul3986, if you cannot find away for increase the height of your grow space, is CFL. Because all the other lights system will require too much space between the canopy of your growth and the light.

Also, I will not recommand a ScrOG but a LST setting, just because a ScrOG setting need at least 24", and you simply do not have the height space…

You can find at any home hardware store CFL bulbs or here a link to Amazon…

P.s. you’ll need “warm” and “day light” bulbs “day light” for seedling / sprouting and vegetative stage and “warm” ones too :

https://www.amazon.com/WeedBulbs-PowerMAX-SINGLE-SPECTRUM-CB1024MA/dp/B018PSHMYU/?tag=greenrel-20

You’ll notice their is three options, one is “full spectrum” and I will recommand that for all the stages of the plants growth and the other ones in support…

Hoping that’s enlighten you a little and helping you @Lilpaul3986

~Al :v: :innocent:


#12

Woohoo great answer @Niala
And it gone another home run Al :+1:


#13

Thanks @Countryboyjvd1971, John, it’s always a pleasure to contribute by helping other fellow grower :grinning:


#14

I agree brother glad to see you around today
I’ll be getting off for a while now stilla t work :anguished: But talk soon Al


#15

If I were you I would get some cfls for top lighting and t-5 2 ft light bars for side lighting. The cfls only need 5inches of space between the plant n the bulb and the t-5’s can be even closer. T-5’s are pretty nifty too cuz they have lil pig tail connectors so you can line your the entire sides with them if you plan it out. The combo will give you great top light for the main cola n extra lumens to get your popcorn bubs n smaller colas going great too. Check out my thread in the grow section “northern lights auto dwc” I have a pic of what I’m trying to explain for you to do of my cabinet. Note that I’m planning on adding at least 1 more t-5 for side lighting in the box, just haven’t gotten around to it yet because tbh the plants I have in that box are bag seeds I started to learn how dwc hydro grows work.


#16

There was a confusion apparently my dwc is 6 gallons but only 7" tall


#17

I have 32" from the top of my dwc and the roof with no lights yet


#18

So u could switch the cfls for an led like Mars hydro 300 n still get some t-5’s for side lights xD


#19

hey mate,just


#20

Hello all. I’m a beginner so I will have lots of questions. I bought 5 seeds of purple haze to start out with. The link I got said to use a cfl light. I could not find one with the wattage. I did buy a LED grow light. Will this work for the seeds to start? If yes, what sdistance should I put the light over them?
Thanks