Electric Sky 300 » Wideband LED Grow Light

Rated 5.00 out of 5 based on 26 customer ratings
(27 customer reviews)

$695.00 USD

In stock


The Electric Sky 300 (ES300) is our flagship LED grow light. Its exclusive wideband spectrum replicates the “infrared” power of the sun with a tuned color ratio for large growth and explosive yields from seed to flower.

Dual-way linear optics focus light onto your plants in a perfect rectangle, so Electric Sky can maintain grow power at a far distance, or can be deployed close to the canopy without burning your plants.

With its directed light output, Electric Sky 300 offers the ultimate configuration versatility in grow rooms, aisles, or tents.  You can design the perfect system configuration to achieve maximum performance in your garden.

  • Full Intensity Control – Daisy Chain Dimming Kit Included
  • Grower Proven Results
  • In Stock – Discrete Shipping Worldwide
  • 90 Day Unconditional 100% Money Back Guarantee
  • 3 Year Warranty
  • Free USA & Canada Shipping
  • ETL Listed for Quality, Safety & Commercial Energy Rebates


Recommended configurations:

  • 1x ES300 – Flower 2’x4′ – 3’x5′ Grow Tent / Veg 3.5’x7′
  • 2x ES300 (Replace 1000W HPS) – Flower 4’x4′ – 5’x5′ Grow Tent / Veg 7’x7′
  • 3x ES300 – Flower 5’x5′ or 4’x6′ / Veg 7’x7′
  • 4x ES300 – Flower 4’x8′ – 5’x10′ / Veg 6’x12′
SKU: ES300 Categories: , , ,


ELECTRIC SKY 300 (ES300) the Original Wide-Band LED Grow Light System

If you’re a professional producer who expects uncompromising quality in results and demands a boost in yield, weight, potency and terpene quality with BLAZING FAST growing/flowering time, then the Electric Sky 300 LED grow light panel is the SECRET WEAPON that can make it happen.

No other grow light in the industry matches the Electric Sky in growing and flowering power.

Our patent-pending GS1 Wideband Spectrum technology replicates the exact power of the Sun’s wavelengths that plants thrive in, so the ES300 gives your plants even more of what they’re looking for.

If you’re looking for the best LED grow light, this is like putting your entire crop on steroids!  The Electric Sky 300 saturates the hidden growth centers of your plants with a unique, scientifically proven combination of growing and flowering light— wavelength nutrients your plants understand.

The ES300 unleashes any indoor plant strain’s true optimum potential, delivering explosive yield results up to one to two weeks faster. You’ll widen your profit margins with LEDs that require a fraction of the electrical power, nutrients, and water costs than any other grow light system you’ve tried before.

  • GS1 WIDEBAND SPECTRUM TECHNOLOGY lets your plants “see” and soak in what traditional “white” or “purple” LEDs can’t give them: a scientifically tuned nutrient blend through spectral light wavelengths that IGNITES growth, flower size and weight.
  • GIVE YOUR PLANTS THE CORRECT INFORMATION: When plants don’t have enough infrared light, they’re “flying blind” and can’t “see straight” or “think straight.” Other LEDs fail to provide plants with enough usable near-infrared light. The ES300 gives CONCENTRATED growing flower power with unsurpassed spectral red & infrared generation of 60%!
  • MODULAR SYSTEM: Each ES300 panel creates a SKY to fit up to a 2.5’ X 5’ foot space. More than one linked together expands the rectangular footprint, fully and evenly illuminating any larger growing area you design.
  • HEIGHT UTILIZATION: Near-field lighting gets our ES300 only 12-18” from your plant canopy using “direct down” focused light with our linear, dual-direction optical lenses.  This means you can grow GIANTS even in spaces with limited headroom. No more worrying how far grow lights should be from plants!
  • EDGE-TO-EDGE garden growth keeps your ENTIRE garden brighter, but with no burn & higher yields. Distributed LEDs and special linear lenses shine light all the way into the far corners of your garden.
  • COVERAGE INTENSITY is optimized by our lenses that evenly distribute light to not only create a full side-to-side, front-to-back optimum “Sweet Spot” but also provide the ultimate up-and-down intensity through the plant canopy.
  • CANOPY PENETRATION activates growth beneath the canopy with penetrating spectrum colors for higher potency AND more usable product from the top to bottom of your plant.
  • PASSIVE COOLING: No moving parts to make noise or break down the road. Uses only 300 watts of energy for 500 watts of growing power with half the heat!
  • 90 DAY MONEY-BACK GUARANTEE means you can grow an entire garden to finish and see for yourself, without any financial risk to you, how our lights DOMINATE and outperform all others!

Recommended configurations:

  • 1x ES300 – Flower 2’x4′ – 3’x5′ [Grow Tent] / Veg 3’x6′
  • 2x ES300 – Flower 4’x4′ – 5’x5′ [Grow Tent] / Veg 7’x7′
  • 3x ES300 – Flower 5’x5′ or 4’x6′ / Veg 7’x7′
  • 4x ES300 – Flower 4’x8′ – 5’x10′ / Veg 6’x12′

In the box you’ll find:

  • Wire Gripper Cable
  • 120V Plug Adapter
  • 240V Plug Adapter
  • 2x– Metal Ratchet Rope Hanger




Input Power / Voltage
300W / 100-277V
2.5A @ 120V / 1.25 @ 240V
Spectrum:GS1 Wideband Spectrum*
Guaranteed Red / Infrared Radience [Growth Power]50% / 10%
Diode Count648 Diodes
Photon Efficiency [300nm-780nm]2.0 Umol/J**
Fixture Dimensions / Weight36L x 12W x 2.4H in / 22lbs
Flowering Hang Distance / Coverage18” / 2’x4’ -2.5’x5′ area
Vegetative Hang Distance / Coverage36” / 3’x6’ – 3.5×7′ area
Warranty3 Years Full
Expected Fixture Lifetime70,000+ Hours [16 yrs flower / 10.6 yrs veg]
Upgradeable LED ChipsYes – Available from Manufacturer
US Laboratory Tested CertificationETL Listed for Safety in Damp/Dry Locations
Eligible for Energy Rebate

In the box you’ll find:

  • Wire Gripper Cable
  • 120V Plug Adapter
  • 240V Plug Adapter
  • Free (while supplies last) – Metal Ratchet Rope Hanger
  • Free (while supplies last) – Boveda Humidity Pack
  • Free (while supplies last) – Mammoth P 30ML Sample Bottle

* Wideband spectra like the one found in the Electric Sky are more efficient for plant growth per photon than White LEDs, but it is less “electrically efficient” to create the spectrum.  Some studies suggest up to a 25% greater yield due to full activation of plant photosystems and the Emerson Effect.

** If standard white LEDs were used, the umol/J would read 2.2. Wideband diodes create near red and infrared light above 680nm, critical nutrients to plant growth, at a slightly lower “electrical efficiency”, but greater overall “plant efficiency”.


27 reviews for Electric Sky 300 » Wideband LED Grow Light

  1. Rated 5 out of 5


    Ten days into flowering and my plants look great! Fan leaves are a deep, dark green and not much stretch. My space is so much cooler as well. I am blown away by the ES300, plants look better than expected and with all the money I’m saving on energy and bulbs I won’t be going back to HPS/MH!

  2. Rated 5 out of 5


    I heard about the electric sky from a friend. Super stoked now that I wen’t though a full indoor crop with the es 300. My Plants produced big time. Done with bulbs, this is the way to go. Just the energy savings is enough to get my attention, but I did not expect this! Slowly switching my whole set up.

  3. Rated 5 out of 5


    Just got my lights in the mail. Fast shipping. I can’t wait to get these pups up. Thanks Dan for all the help.

  4. Rated 5 out of 5

    Craig L.

    I am so happy I made the choice to purchase the electric sky. From veg to flowering, I would say there is no comparison to anything I have ever tried in the past. I have been growing 15 years, and wish this came out when I first started. Life would have been much easier.

  5. Rated 5 out of 5

    Eric N.

    I installed two ES300s in my 4×4 grow tent two weeks ago replacing a 600w MH lamp, making the change as I switched from veg to flower. The results are incredible: all my plants are already producing visible buds, which appeared after only a few days under the ES300s, and growth accelerated visibly, adding up to a couple inches a day (or even during the dark period!) The amount of plant matter has been accelerating as well. Light penetration under the canopy is excellent as well, there are no longer yellowing or dropping leaves even towards the bottom of the canopy. I do understand Dan’s caution that these lights are not for beginners: the plants may outgrow the space and will require more and careful pruning in future cycles to retain control and maximize production because of the fast growth – I’ve had to brush up on my pruning skills. Also, I’ve been able to reduce exhaust fan speed for tent ventilation because there is less radiated heat from these lamps, allowing the grow space to be at a higher temperature – which also means faster growth. But it can also mean higher humidity so watch out for that. Right now I’m running at 80 degrees and 45% humidity with my ventilation fan on the lowest setting and two circulation fans: one above the lamps to prevent stratification of heat near the top of the tent, and one near the floor to move the air through the canopy. I did not experience an overall reduction in heat production but that was because I chose a configuration that gave me more light than the MH for the same amount of watts into the tent, and the total watts is what determines heat production.

  6. Rated 5 out of 5

    Junior gonzalez (verified owner)

    This light is amazing I want to switch over to nothing but Electric sky lights in my indoor garden I love this es300 my plants are growing like monsters, they absolutely blew up !! only thing I could say is make them daisy chainable that would be great ! Growers love 😉

  7. Rated 5 out of 5

    David G Pinchot (verified owner)

    I have the 2 of the ES300 the growth and buds just explode under the lights. Must buy!!!!!

  8. Rated 5 out of 5

    M.Tap’s (verified owner)

    The best light you can have in 2018! Fast growth, green leaves, healthy plants, little electricity consumption… I am 100% satisfied! Thanks for everything Dan!

  9. Rated 5 out of 5

    Chan (verified owner)

    I have wasted a lot of money on LEDs in the past couple years and was never satisfied! Until I got my hands on the ES300. This LED is like having a small SUN in my grow room. Amazing growth, huge… huge buds! Thanks Dan for getting yourself in the LED market.

  10. Eric N.

    This is an update to my previous review. I just completed my first grow with two ES300s in a 4×4 tent. The harvest was amazing – about 20 quart mason jars, not to mention a lot of undergrowth to produce a few pounds of bud-containing trim for edibles. It seemed to produce about twice the totay usable flower weight of the 600w CMH lamp I had before. However, the light’s amazing growth stimulation also caused my tent to become a bramble and my harvest was a small fraction of the total weight of growth – something I never had to deal with before. So next time, I’m going to use a dual-level SCROG approach to keep the light on the flowers, and avoid producing a lot of trim. Also because of the rapid growth I got taken by surprise on water usage and ended up with some fertilizer burn because the growth medium dried out so fast that the effective fertilizer concentration was too high. The solution would be to water more often of course but I didn’t realize it at first. Or to switch to hydro, which I’m doing on my next grow.

    I also noticed that the plants produced different looking bud than under the CMH: more richly colored and heavier. This meant more staking and binding had to happen. But it’s a great thing.

    These lights produced just enough heat to keep my tent at 80 degrees on the low fan setting which was perfect, but I had to watch the humidity more as a result. The fact that they’re dimmable means you can use the same tent for vegging if you wish and the lights cause really fast vegetative growth which of course is great.

    Overall I’m very satisfied – including with Green Sunshine’s support which helped with getting a faster understanding of the differences from CMH.

  11. Rated 5 out of 5

    Wil F

    I was skeptical about purchasing these lights since everyone claims that their lights are the best on the market. I got two ES 300’s in a 4×4. All skepticisms were put to rest as the weeks passed. The growth rates are ridiculous! I damn near grew myself right out of the tent! Light coverage is perfect. Gonna get a 5×5 next. These ES300’s will definitely be able to handle it.

  12. Rated 5 out of 5

    Matt w (verified owner)

    Es300 killin it in the garden! Will definitly b buying another! This is a real deal led grow light.

  13. Rated 5 out of 5

    Jeff Heer (verified owner)

    I stand behind Dan and his company! I did a lot of comparing before I laid out 1800 Ca $ for lighting. when I could have spent less than half on Hid lights.Even so I am thrilled with these lights. I believe they are the future of plant lighting. A simple well designed , bullittproof product from a solid company. Thanks Dan for the personal service

  14. Rated 5 out of 5

    Bud Durden (verified owner)

    I’m testing a ES300s right now. Early on in the grow but my vegetation is growing very quickly and my cannabis plants look fantastic. Can’t wait to see what this baby does with flowering. This grow light unit is a massive jump ahead of the competition. The unit is made of high quality materials and doesn’t require fans to cool the unit. Fantastic!

  15. Rated 5 out of 5


    I love my two ES180’s so much I am saving up for a couple of these too. Dreams.

  16. Rated 5 out of 5

    Shay Nicholson (verified owner)

    Wow is all I can say for these lights. I Did a lot of looking around before I decided to go with these ones and I am more then happy with the results. I would highly recommend these over almost any other led light, the foot print is great and the power is amazing just one ES300 absolutely blew my 600w hps out the water in every aspect. Amazing lights all round simple as that.

  17. Rated 5 out of 5

    Alaska Greengo

    This light is something to behold- right out of the box you can tell that it was well designed with the passive heat sinks. The first time I plugged it in I could tell that I had found what I was looking for… shortly afterwards my plants confirmed this. The growth has been incredible and I’m already planning on picking up some more

  18. Rated 5 out of 5


    Absolutely hands down the best LED grow light on the market. I’m 1 month into flower and the first 2 weeks my plants tripled in height and are now starting to stack on some major weight. If you’re on the fence about buying this light look no further, the price of the ES300 is a little scary at first but you get what you pay for – a superior LED grow light above the rest. Not only that, but Dan is extremely helpful and knowledgable about the science behind his light, and why it’s so much better than the rest. I will be a customer for life, keep up the good work Dan!

  19. Rated 5 out of 5

    Gene (verified owner)

    Had a friend tell me about these lights. I was skeptical at first. Came time for me to get a new light and I did some reading and watching videos. I decided I would give the 300 a chance. I am halfway through my first test run and so far all of my garden is exploding. This is the best LED light I have had so far. The growth is double what I have had in the past, I like the air cooled setup. It does give off a good bit of heat but nothing you can’t over come. Two 300 in a 4×4 tent is exactly what you want. You can easily angle the light for your need.

  20. Rated 5 out of 5


    Started w/ 450 advance spectrum max n was happy w/ results. Wanted to have a veg n flower tent so I could always have some plants in flower instead running a full cycle at a time. Everthing lead me to the es300 which is outstanding in the growth I had under it compared to old light. Biggest selling point besides the outstanding growth is that it is upgradable when new LED technology is released

  21. Rated 5 out of 5

    Vinny (verified owner)

    Ive only had these lights for about 2 months and the flower production is great. By far the best light ive ever ran with thank you dan. Will be ordering more!

  22. Rated 5 out of 5

    John Velez (verified owner)

    Came in less then a month ago and i couldnt be happier explosive growth rate plant loves it and so do I take your garden to the next level thanks greensunshine co.

  23. Rated 5 out of 5

    Paul Sariego (verified owner)

    I have had a pair of the 300’s for 30 days, I now have 4 very large girls ready to go to flower. This is my 1st indoor grow and so far they react and act just like they were outside! That is honestly the biggest compliment I can give. I will be buying more ASAP to increase my room size. These are simply an efficient to run, cool in the room, and require no additional A/C. I am a total believer and so are my non LED growing friends.

  24. Rated 5 out of 5

    Home Grow Co.

    First, the lights are flat out killing it. I had a bit of a learning curve with regards to light height vs my 630 LEC, and surprisingly, drastically increased watering schedules. I think I’ve got that all dialed in now and things are progressing very well.

    Vegetative summary points (running 5 Barney’s Farm Cookies Kush – one of my personal favorites):
    – 1xES300 did all of the veg work for me, awesome that I had half the electric consumption with the amazing results vs 630 LEC. Once again, I grow exclusively in super soil, 7 gallon fabric pots, from seed and in tents. I run 2-3 brewed teas during this time and typically foliar feed with Heavy16 once every 7-10 days.
    – Drastically quicker water consumption vs. 630 LEC. .5-.66 gallons every other day vs. .5-.66 every 4th day. 2x water consumption with 1/2 the watts.
    Topped at day 28 from seed – this is my typical timing which usually hits around node 5-7, with 1 ES300, I ended up topping at node 9!!!
    – I like to grow a robust plant before switching to flower…usually around day 60 from seed. With just 1 x ES300, I switched to flower on day 46, a full 2 weeks sooner with 3 more nodes of development. Simply amazing!

    Flower summary….it’s day 21 today:
    – Flowers have developed at a much quicker rate. I am seeing trichome production already!! More uniform development down the stalk (I lollipop to the last 5 bud sites on each stem), with significantly sturdier/more rigid stems.
    – There is already a fairly strong aroma. Of course the carbon filter scrubs it, but as soon as I crack the tent open it’s close to overpowering already.
    – Incredible growth rate. I love this. The plant is just exploding!!!
    – Stretch was slightly shorter in duration and distance. Usually these stretch for a solid 2 weeks and then slow down the 3rd week. This time they were done at the end of week 2 and stayed slightly more compact (I would estimate 15-20%).

  25. Rated 5 out of 5

    Larry Richards (verified owner)

    I am up and running with my ES300. It appears to be very good quality unlike all the other lights I have. I particularly like the footprint it provides. A much longer PAR area. I have a 5’x 3′ tent and it is perfect. I may add the ES180 later.

  26. Rated 5 out of 5

    Mac Ian (verified owner)

    The Electric Sky 300 is worth every Penny.Truly Amazing! Game Changing technology that will revolutionize indoor growing. Respect

  27. Rated 5 out of 5

    Chris (verified owner)

    My harvest is nearly in as well, and it’s one of the best crops I’ve had in the 5 years I’ve been working this 4 X 4 closet grow. The 1200 watts of Chinese LED lights I had hanging previously were shown up pretty badly by a mere 600 watts of Electric Sky. By far the most healthy I’ve ever seen my plants look. Obviously the reason they had 0 problems through the entire grow. They were just feeling too good to stop dancing for anything. There’s going to be a lot better yield as well, due to the amazing light penetration. I also see the trichomes are ripening with unprecedented uniformity, that’s going to make harvest a breeze, no taking buds a level at a time to even out the ripen. I’m really glad I met Dan and The Green Sunshine Co, their lights have taken my grow to the next level. Thanks for sticking your neck out and getting these lights on the market, they are undoubtedly going to make a lot more growers very happy.

Add a review

Your email address will not be published. Required fields are marked *