by Nebula Haze
Unfortunately, the ES300 LED grow light has been discontinued. I’m keeping this page up for a little while just in case they come back, but until then the light I recommend as a replacement is the HLG 350R LED grow light.
See a cannabis grow journal using this setup.
ES300 Quantum Board LED Grow Setup for Growing Cannabis
- Average Yields: 7-13 oz ounces
- Plants: Recommended 2-6 plants
- Optimal grow space is a 2’x4’x6′ grow tent
- Actual Power Consumption: About 300W at full power, and both can be dimmed down for younger plants or if the temperature is getting too high
- How Far to Keep from Plants: 24″ from the top of plants in the vegetative stage, and 18-24″ away in the flowering stage.
Electric Sky ES300 LED grow light – works great from seed to harvest. 
These 3 cannabis plants were grown under ES300 LED grow lights (here’s the grow journal)
The 3 plants produced over 11 ounces after buds were dried and jarred
About the Electric Sky ES300 Setup for Growing Weed Indoors
This is currently my favorite LED for growing weed (unless you want to grow in a tiny space, in which case I recommend the HLG 65). Plants grow fast and healthy, and it gets some of the best LED yields of all the models I’ve tried.
Pros: The ES300 is a quantum board with a unique new spectrum that seems to get better yields than a lot of other LEDs I’ve tried. They’re gentle on plants and easy to use.
Cons: Expensive and heavy (the weight is my biggest complaint, otherwise it’s a perfect grow light even at the price)
Setup Cost Estimates
Estimated Cost: $890+
- Ultra budget (no smell filtering): $890
- Only the necessary stuff + smell filtering: $990
- Get everything including the premium equipment and optional extras: $1100
Summary of what’s needed for this Electric Sky ES300 LED cannabis grow light setup
Complete Grow Supply List
This cannabis grow room setup list includes all the supplies you need to get to harvest.
ES300 Quantum Board LED Grow Light (300 watts)
Electric Sky ES300 (designed to be used from seed to harvest)
- Yields: 7-13 oz per harvest
- Simple to use and hang. Works exactly as you’d expect.
- Only uses 300 watts of electricity
Cost: $600
The ES300 LED grow light can produce up to 13 oz of weed
Grow Tent (recommended sizes)
Just about any grow tent brand works great, but I’ve had good luck with the CoolGrows tents and they’re pretty reasonably priced. A grow tent is an easy and cheap way to instantly create a perfect cannabis grow space that can deal with water, light, heat, and smells. Learn more about grow tents.
- 2’x4’x6′ tent – an example is Cool Grows 48”x24”x72” grow tent.
Cost: $95
This Cool Grows tent is a good fit for the ES300 LED grow light.
6″ Exhaust Fan
An exhaust fan vents hot air and can be combined with a carbon filter to stop all smells from leaving the grow space. The 6″ size is more than enough for a 2’x4’x5′ grow tent. In fact, with some brands like Vivosun, the smaller 4″ version of their fan is enough.
- Recommended: 6″ AC Infinity CLOUDLINE series of inline exhaust fans. These are quiet at top speed and completely silent at lower speeds.
- S6 is the cheaper, simpler version which works well and gives you basic fan speed controls
- The programmable T6 version has handy extras like a Temperature/Humidity Probe and Display Screen
- I picked the 6″ fans because Their 4″ fan struggles to keep this size tent cool
- Budget choice (Cheap but loud): 6″ Vivosun fan
- The Vivosun 6″ Fan – 440 CFM is significantly smaller and cheaper. However, it is also significantly louder.
Cost: $70+ ($70-160)
The AC Infinity CLOUDLINE S6 6″ exhaust fan runs quieter than most others. It is silent on the lower settings.
(Optional) Carbon Filter – For smell filtering
When set up properly, a carbon filter removes 100% of odors but it must be attached to a good exhaust fan (like the AC Infinity above) to work. Learn more about controlling odors
- Recommended: Terrabloom 6-inch Carbon Filter, 6″ x 16″ version plus ducting/clamps
Cost: $100
I’ve had great smell filtering with the above 6″ Cloudline fan attached to this Terrabloom 6″ carbon filter with 6″ ducting.
Plant Pots
I prefer fabric pots or air pots because cannabis plants grow faster but need to be watered more often than standard hard-sided plant pots. Both types work great for growing cannabis indoors. Often the best plant pot is whatever is cheap and easy for you to get.
- Recommended: Fabric pots between 2-7 gallons (any fabric pots work great so I pick whatever is cheap or looks the best to me)
Cost: $25
These 5-gallon fabric pots work great in this setup
Grow Medium (Soil, Coco, Hydro)
Grow mediums can include coco coir or soil (hydroponics for more advanced growers) but if you’re not sure, a coco-based soil like Coco Loco is perfect for beginnners.
- Recommended Soil: One 2 cu ft bag bag of coco-based soil with perlite should be able to fill 15 gallons worth of pots. For example, it will fill 3 x 5-gallon fabric pots.
Cost: ~$40
Coco Loco is a coco-based rich airy soil that cannabis plants thrive in
Nutrients
Many nutrient systems have a nutrient schedule so you give your plants the right ratios for each stage of life. Basically, you use a “vegetative” or all-purpose plant nutrient for the first part of your plant’s life and a “bloom” or low-nitrogen nutrients when buds are forming. Tip: Always start at half-strength with a new base nutrient system since the recommended amount can be too high for cannabis plants.
Recommended Nutrients: Dyna-Gro Grow + Bloom nutrient combo is excellent, cheap, and easy to use for growing cannabis indoors.
- Dyna-Gro “Grow”: Give 1 tsp per gallon of water during the vegetative stage.
- Dyna-Gro “Bloom”: Give 1 tsp/gallon of water after buds start forming.
Learn about other cannabis nutrients we recommend
Cost: $25
Dyna-Gro Grow + Bloom is my recommended nutrient system for newbies. One bottle for veg, one bottle for after buds start forming. 1 tsp/gallon. Super simple!
Seeds
See a list of recommended seed sources here.
Other Nice-to-Have Stuff
- 24-Hour Timer (to put your grow lights on a timer so the plants get a day and night period on a schedule). Why do cannabis plants need to be on a day/night schedule? What about autoflowering light schedules? – $10
- Water containers (I personally use a 3-gallon or 5-gallon water jug to mix up nutrients, but anything can work) – Much cheaper at Wal-Mart ($5-15) than online!
- Extra 1/8″ Rope Ratchets (sooooo handy) – These can be used to hang your grow light or carbon filter from inside the tent, and still be able to easily move it up and down without needing any strength. Your grow light usually comes with a set of rope ratchets, but it’s a great idea to get an extra set to hang the carbon filter – $10
- Thermometer/Humidity Monitor with a probe so you can keep track of the temperature inside the tent – $15
- PH Test Kit – Prevent potential nutrient deficiencies by testing the water pH: https://www.growweedeasy.com/ph – $20
- Measuring spoons for measuring out your nutrients (many people already have these) – $12
Learn about other cool growing tools
Estimated Cost: $890-$1100 ($990-1100 with professional smell filtering) plus the cost of seeds
- Ultra budget (no smell filtering): $890
- Only the necessary stuff + smell filtering: $990
- Get everything including the premium equipment and optional extras: $1100
I used ES300 LEDs to grow plants in coco and super soil for a side-by-side experiment. The real winner was me because all the weed came out amazing.
Pineapple Chunk bud grown under the ES300
Buds grown under the ES300 get fatter than most other LEDs I’ve tried, like these Power Africa buds.
Example of Peyote Critical buds grown under the ES300
