The Best Lights for Growing Weed in a Closet
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It might be surprising to hear, but many of the best cannabis growers first cut their teeth on growing cannabis in cramp and tiny spaces.
It teaches you how to hone essential gardening skills and work with what you’re given, and may ultimately give you the edge over growers who’ve only grown in large spaces.
While called a ‘closet grow,’ the term applies to really any growing that’s done in a small space.
With a little innovation, people have successfully grown weed in cupboards and even computer towers.
Trying to grow cannabis in a space as small as a computer tower is pushing it though, and you’d be better off building a rig like a space bucket.
The ability to grow weed in something as small as a closet, but still have a constant supply of bud on hand is beyond tempting.
However, the small space does create some unique issues for cannabis growers with the biggest dealing with their light source.
When you’re confined to a small space, choosing the right light is never more important.
The last thing you want is to spend $500-$1000 on a light that won’t work in your space.
Today, we’ll show you what goes into picking the best light for your closet or micro grow.
As well, we’ll give you our five favorite grow lights for growing weed in your closet or another small space.
Quick Top 5 Lights for Closet Growing
Horticulture HLG 65 V2 4000K
Roleadro Galaxyhydro LED
Durolux DL824 Fluorescent T5
Sun System HPS 150W
Keep reading or jump straight to the reviews!
Table of Contents
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Why Grow Weed In Your Closet?
Growing cannabis in your closet or a cupboard is a great way to get started quickly without getting overwhelmed with too much info and equipment that requires a big budget.
By choosing the right light, it’s completely possible for a first-time grower to grow more than enough cannabis to supply their needs even if they’re a daily user.
Growing in your closet is more discrete, gives you better control over your growing environment, and you don’t have to sacrifice a room in your house to growing cannabis.
Types of Small Grow Lights
When choosing a light for growing cannabis, you’ll come across three major types of grow lights.
Fluorescent Grow Lights
There are two main types of fluorescents used for growing: CFL (Compact Fluorescent Lights) and T-Series (T5, T8, & T12) Grow Lights.
Pros to growing with fluorescent lights:
- Work great in super tiny spaces
- Plugs into standard light sockets
- Good light spectrum
- Great for seedlings, clones, and young plants
- Don’t produce a lot of heat
Cons to growing with fluorescent lights:
- Smallest yield per watt ratio
- You likely won’t have fluorescents strong enough lying around the house
- Buds aren’t as dense as they are under other lights
To see get a complete break down of fluorescent lights check out our guide here.
HID (High-Intensity Discharge) Grow Lights
There are three main types of HID lighting: HPS (High-Pressure Sodium), MH (Metal Halide), and CMH (Ceramic Metal Halide).
Pros to growing with HIDs:
- Fantastic light spectrum MH (Veg), HPS (Flowering), & CMH (All stages)
- High yield to watt ratio
- Have dominated professional indoor gardens for years.
- Often dimmable, allowing some to fit medium-sized closets.
Cons to growing with HIDs:
- Require a reflector and ballast that take up space
- Often produces too much heat for small spaces
- Cannot get close to plants like other lights
To see get a complete break down of HPS lights check out our guide here.
LED (Light-Emitting Diode) Grow Lights
LED grow lights come in many styles from bulbs to strips to full-blown units with built-in exhaust fans and optional light spectrums.
Pros to growing with LEDs:
- Cutting edge grow light technology
- Super energy-efficient
- Low heat
- Doesn’t need to be replaced as often as HIDs and fluorescents
- There are LEDs suited for every growing space no matter how big or small
Cons to growing with LEDs:
- High initial cost
- All the different style units can make picking one confusing
To see get a complete break down of LED grow lights, check out our MASSIVE guide here.
How To Choose A Grow Light When You Have No Space
If you want to grow the amazing weed we know you can, these next five factors are essential to picking the best grow light.
If one thing limits your lighting choice more than anything else, it’s how much heat some produce.
While many growers consider them the best lights, HIDs are usually not recommended for spaces smaller than a 3’x3’x5’ (LxWxH).
You want an energy-efficient light like an LED that can produce more light per watt.
CFLs are also a popular choice for keeping heat from building up, though they aren’t the most energy-efficient. If you go with CFLs, be sure to check out this buying guide on THCoverdose.com.
Resist the temptation to buy the most powerful light or the LED with the most light.
High-intensity lights build up heat quickly even in large spaces and require ventilation equipment a small space can’t handle.
Before you buy a light, you need to measure how much space you’re limited to.
This is a good time to measure out everything, including your grow medium’s height, final plant height, and how far your light hangs from the ceiling.
While energy-efficient and low heat producing, many LED units — and all HID lights — need to hang 18-24” above the plant’s canopy as they can burn plants with too much light.
If your space can’t handle the height requirement of a traditional LED unit, CFLs and DIY LED strips can often get as close as an inch or two from the plant’s canopy.
Cannabis plants love a lot of light, but too much can severely hinder their growth and even kill them.
That’s why it’s important to calculate your square footage, so you don’t buy a light that’s too powerful or weak.
For finding how much light you need for your grow space, you usually only need to calculate its width and length. We’ll show you how below!
Just like if you were growing cannabis in a warehouse, you need to pay attention to the light spectrum when growing in a closet or another small space.
For HIDs, CFLs, and white LEDs you want a light between 4000K-6500K for veg and one between 2000K-4000K for bloom.
Some LEDs grow lights go by nanometers instead of kelvins and for those you want 400nm-550nm for veg and 550nm-750nm for bloom.
If you can only afford one light spectrum, go for one that’s better for flowering than veg because this is the stage when all your future bud does its growing.
As well, you can find LED units with switchable veg and flowering cycles.
Most growers are setting up a closet grow because they don’t have a lot of space or have a limited budget.
It’s a hard decision deciding if you want to buy a cheap light you might only use for a handful of grows or an expensive one that will save you money in the long run.
Our recommendation is to consider spending a little more money on an energy-efficient light, not only because it means lower electric bills, but they also help keep the heat down.
How Much Light Do Indoor Plants Need?
There’s a lot of confusing terminology in the cannabis growing world and accurately measuring and comparing different types of lights is a bit of a nightmare.
We won’t go too in-depth here, but you should know that lumens and watts are not important for LEDs like they are for HIDs and fluorescents.
Because HIDs have long dominated the professional growing world, watts and lumens are still heavily used when comparing LEDs to other lights.
Since companies that make LED grow lights still use watts and lumens when selling their lights, so will we.
In general, you want a light that’s equivalent to a 50W HID per square foot.
If your 100W LED says it can replace a 200W HID, then it should cover a 2×2’ area.
However, you need to calculate PAR (Photosynthetically Active Radiation), PPF (Photosynthetic Photon Flux), and PPFD (Photosynthetic Photon Flux Density) if you want to truly know how much usable light an LED can give a plant.
The Best Lights for Growing Weed in Closet
Horticulture HLG 65 V2 4000K
- Grow Space Coverage: 2’x2-3’x3’
- Power Usage: Pulls 65 Watts
- How Far to Keep from Plants: 12-18”
There are several factors that we considered when selecting the best grow lights for a closet or micro grow.
There’s price, light spectrum, yield to watt, and practicality, to name a few.
The immediate thing that takes you by surprise about the HLG Quantum Board is its ability to blend affordability, energy efficiency, and watt to yield ratio.
It produces 10,000 lumens with only 65 watts and lasts for 50,000 hours, making it comparable to a 150W metal halide and a 200W CFL which are only expected to last 6,000 to 15,000 hours.
Remember with LED lights that watts and lumens are not as important as they are with HID lights.
Add on top of that white full spectrum LEDs are the latest craze in LEDs, and you’ve got a recipe for a great grow light.
While it only has one light spectrum, white LEDs are doing fairly well, supplying enough blue light for vegging plants, and this light covers a 3×3′ footprint in veg & 2×2′ in flowering.
This version, in particular, has more than enough blue light to keep plants short in veg, but you may want to ultimately go with the 3000K 100W version for bigger buds.
It’s not dimmable, so you’ll need it to hang around 12-18 inches over your plant’s canopy, and potentially two feet for seedling — HLG does make dimmable units.
Besides that, the HLG Quantum Board is a beast to contend with, and you will not be disappointed when your pulling more yield per watts than your friend growing with an HID.
The best lights for growing weed in closets can help take an average grower to a MASTER grower. Click here to see our side by side reviews.
Best Lights for Growing Weed in Closet | Grow Light for Small Spaces
With more and more states legalizing the growing of CANNABIS worldwide, many people are taking the advantage and growing the crop for both medical and recreational purposes. The legalization has seen an upsurge of home growers planting the weed with confidence and pride. Majority of these home growers grow their weed indoors and they use every available space to realize their dream.
It gets even easier as there are many weed indoor growing resources in the market today. Besides a GROW TENT, a grow room, those with limited space are growing their weed in Closets and Cabinets. The difference between closets and cabinets is that closets are slightly larger and give you more space for better crop growth and more plants. Cabinets are size constrained but they are also a great option.
Growing marijuana in a closet also ensures that you do restrict yourself to smaller strains only such as the indica. You can plant both INDICA and SATIVA without having to worry about the height of the crops. Just like growing your weed in a grow tent, growing in a closet also requires the same kind of resources and equipment. Your crops will need light, water, nutrients, ventilation, good humidity and temperature levels and a good airflow.
The advantage of growing weed in a closet is that you do not need a heavy-duty lighting set up system. A simple decent system will go a long way in ensuring that your closet crops get as enough light as crops growing outdoors or in a bigger grow room setup with a much larger lighting system. We reviewed some of the BEST LIGHTS FOR GROWING WEED IN CLOSET.
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Our top picks of the best lights for growing weed in closet
Yueme 1500W LED Grow Light
If you are a first time marijuana grower and you want to start your journey growing your crops in a closet, you will go wrong with Yueme 1500W LED Grow Light. For starters, it is one of the most suitable lights for all the growth stages of your crop and it is affordable. The COB LED GROW LIGHT provides your closet weed with full spectrum light ranging from 380nm to 600 nm.
The light spectrum includes red, blue and white, which are common with majority of LED grow lights. The lighting system comes with an on-off switch that allows you to monitor the lighting options better. For protection of the crops, the light has UV and IR. It is also one of the best energy saving lights, as it requires only 300 watts to provide its full potential.
The light has stable heat dissipation, which is more durable compared to other LED grow lights. The full package includes the 1500W grow light, a hanging kit, a plug cord and an instructions manual.
- Provides full spectrum light
- Highly energy efficient
- Has UV and it lights for crop protection
- Has stable and durable heat dissipation
Yueme manufactures high quality grow lights and you can never go wrong with any of their products. This particular product is ideal for closet weed growers as it is both affordable and effective. I would highly recommend it especially if you are a first time weed grower.
CF Grow Waterproof 100W LED Grow Light
Constructed after decade of extensive research and experimentation, this grow light is both affordable and of the highest quality. The waterproof 100-watt LED grow light is especially great for first time growers on a tight budget. Its waterproof effects ensure that the light stays dry even when there is humidity in your grow space or accidental water showers.
It is energy efficient as it draws around 50 watts of power per hour. The COB LED grow light also comes with a high-end heat dissipation, which helps to keep temperatures at 65 degrees Celsius. The light is small, light and it does not come with any cooling fans. The expected light lifespan is 50,000 hours and it comes with a two-year warranty
- Provides full spectrum light
- Two-year warranty
- Lifespan of 50,000 hours
- It is not clear of the total coverage the lights provide
Growing weed in a closet does not require complicated lighting systems. CF Grow Light is a simple, thin and light that will not occupy space in your closet. It is the best light to use for all the growth stages of your crops and I highly recommend it.
Hipargero LED Grow Light
Hipargero LED grow light uses the highest quality LED chips to provide full spectrum light for your closet weed. The chips are among the best in the market and provide a much higher PPFD and lumens than many other grow lights in the market. Their red light abundance also promotes the flowering stage of the weed, which leads to higher yields.
The COB LED grow light comes with a heat sink and a high heat conducting shell that keeps it cool at all times. The chips simulate natural sunlight effectively and they are durable and long lasting.
- Provides full spectrum light
- Effective for all growth stages
- Red light promotes a better flowering phase
- Comes with two high speed cooling fans which keeps the light cool at all times
- Comes with a one year warranty and a 30 day money back guarantee
- Does not come with daisy chaining properties
This amazing LED grow light will give your closet crops all the benefits they need for proper growth. It is also a highly rated grow light and I would definitely recommend it.
Wrapping it up
COB LED grow lights have superior lighting qualities and they are becoming popular with many indoor growers. They use the latest technology, which gives them an edge over many other LED grow lights. All the above COB LED grow lights come with full spectrum light qualities, they have long lifespans and unlike many other COB LED grow lights, they are affordable.
If you are a closet grower and looking for lighting systems that will last for long, then choose any of the above COB LED grow lights and you will be good to go.
A simple decent system will go a long way in ensuring that your closet crops get as enough light as crops growing outdoors or in a bigger grow room setup with a much larger lighting system. We reviewed some of the BEST LIGHTS FOR GROWING WEED IN CLOSET.