336X-PRO - 500W LED Grow Light

336X-PRO - 500W LED Grow Light

Model number: HGL336X2-PRO
(based on 20 reviews)
LED Grow Light Features: Power selection control, modular internal build, superior thermal management, Power-Link, EXTREME (X2) Lens, 6-band spectrum, ultra low heat signature.

In Stock Free ground shipping to the continental USA

Price: $1,799.00 $1,999.00
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Terms and Conditions


 3 Years Warranty            90 Day Return Policy


Up to 2 Week Lead Time on Shipping

Product Description

The 336X-PRO LED Grow Light is the most powerful grow light in the world for a 4' x 4' area, with tested PAR output matching that of a 1000W HPS! Our refined and Patent-Pending 3rd Generation spectrum features quantum balancing to ensure lightning fast growth rates, record breaking yields, tight internode spacing, super-dense flowers, and fruits so monstrous you'll bring all your outdoor plants indoors!

Spectrum is only half the equation to enormous yields however, because light must be delivered efficiently through plant tissues at high intensities to ensure optimal penetration/absorption. Our Patent Pending X2 lens was developed specifically for this purpose, and is the most powerful optic ever invented for LED Grow Lights. Data proves the X2 lens provides an astonishing 569% higher light intensity compared to the same light without the X2 lens, a feat the competition has been unable to duplicate.

X2™ LED Grow Lights lead the world in performance, quality, and reliability, which has been proven time and again by third-party testing and real-time output data. Thanks to our ever-growing engineering and development team who work continuously throughout the year advancing our technologies, we are proud to say that X2 LED Grow Lights are the most powerful horticultural grow lights in the world. Purchase a 336X-PRO today and experience the pinnacle of growing technology in your indoor garden.



  • Ultimate PAR Control: Easily switch from 0.5W to 1.0W to 3.0W power settings
  • Modular Internal Build: Fully upgradable, easy warranties
  • Thermal Management: Custom copper core heatsinks quickly dissipates heat for cool operating temperatures
  • Streamlined and Neat: Multiple units can be Power-Linked™ up to 1200W
  • Powerful: 2nd Gen ultra penetration X-Lens™ delivers light deep into the canopy
  • Versatile: Power cord available in 110v, 220v and international plugs

>>more about Hydro Grow Design

X lens Product Line

Technical Specifications

336X-PRO LED Grow Light

336 x 3W High Power LEDs from Bridgelux, Epistar and SemiLED
85v - 265v
2.4A @ 220v; 4.7A @ 110v
90°F -110°F (32.2°C - 43.3°C)
440nm, 470nm, 525nm, 640nm, 660nm, 740nm
6 x 120mm dual bearing cooling fans
23.5” x 23.5 X 3” (60cm x 60cm x 7.6cm)
30lbs (13.6kg)
48” x 48” @ 24” above canopy (122cm x 122cm @ 61cm)

Extreme LED Advantages

  • Environmentally friendly - No Mercury, 100% recyclable
  • Easy Maintenance: no bulb replacements
  • Up to 65% energy savings compared to HID
  • Robust growth: grow 2x the yield of HID
  • Long LED Lifespan: 50,000+ hrs
  • No accessories necessary: no cooling equipment, ballast or reflectors needed
  • Can be used with any growing method - hydroponic, aeroponics, soil
  • Integrated heavy duty ratcheting hanging system
Grow Light

Photosynthetically Active Radiation (PAR)

Learn more about PAR

About PAR: Photosynthetically Active Radiation (PAR) specifies the spectral range from 400nm to 700nm that photosynthetic organisms use to process photosynthesis. Photosynthetic Photon Flux Density (PPFD) measured in micromoles per meter squared per second (µmol/m2/s) quantifies the number of photons (or micromoles) in PAR that are available for plants to conduct photosynthesis.

What’s the difference between Lumens and PAR?

Quick Stats >>>>>>>>

  • HPS has 25% more coverage area
  • LED 2.8x lifespan (vs traditional MH or HPS bulb)
Product Description
Curious about how much you’ll save if you switch to LED Grow Lights?
click here >>>> LED Savings Calculator <<<< click here

Write a review
(based on 20 reviews)

Reviewed on 12/1/2015

We have bought Hydrogrow lights for our light of choice and we are so pleased with the quality and customer service. It's sad, our lights were stolen but we are buying Hydrogrow lights again because out of all we tried - they are the best!

Reviewed on 4/1/2015

I did side by side for the last 90 days with Platinum LED 1200 and the 2- 336X Hydrogrow lights I bought from you last year and the 336's definitely out performed the 1200. Hands down. Now that its over i am sending it back to Platinum and doing what I should have done before....order another of your fantastic products.

Reviewed on 3/20/2014

I bought 2x 21xpro to try these lights and understand what differennce was there between hps and led..after one year i was so impressed i decided to buy the best model from hgl so i bought the 336x pro..after a few months i can say i ve never seen a better light to grow in life.it really value your time,easy results and it is just what everybody is looking for a definitive choice.hoping for new innovations to be implemented,such as the light power control that was really a big hit!! Nowaday it s sure the best choice,donny was really patient and perfect shipping

Reviewed on 12/27/2013

a realy god light in hydro!!!!

Reviewed on 11/21/2013

BFS. Bigger. Faster. Stronger. Nuff said!

Reviewed on 8/24/2013

Have eight 336xPRO replacing eight 600 watt high pressure sodium and I am not missing a thing, watching the full moon rise Donnie keeps me up to date and the service after the sale is great

Reviewed on 6/16/2013

immediately upon receiving my light I plugged it in and was amazed at the brightness. It went directly into my tent where I used it for three weeks in veg and then switched it to bloom. I experienced phenominal growth in veg and was very pleased with the flower results. They were tighter and firmer than under hps. The penetration was excellent producing dense buds low on the plant. My room even got way hotter than I want it because of a heater malfunction (not the lights fault) but the plants did not stress like they would have under hps. I am writing this on harvest day and am very pleased. I am planning on buying another one in a couple of months. Thank you for making such a good American made product.

Reviewed on 10/12/2012

Bought 2 of the 336X Pros and couldnt be happier! I was hesitant paying so much for my first pair of LED lights but felt confident with my purchase. I'm 3 weeks into my first flower with them and these lights by far outperform my old HIDs. Heat is not an issue what so ever and plants have grown into the light with no damage done to the plant. I'm currently getting ready to order two more... rock on hydro grow!!

Reviewed on 3/13/2012

Phenomenal Lights- easily better yield than my 600w HPS with substantially less heat and energy usage. Along with the peace of mind that comes with less worrying about burning my house down! The staff is extremely helpful, friendly, and knowledgeable as well. These lights have replaced all my HPS flowering lights, and i look forward to getting the X2 upgrade kits. I have absolutely no doubt that these lights will pay for themselves in the upcoming year. Thanks a lot y'all! e

Reviewed on 3/10/2012

well after some hick ups from the 1st round of 336x pro unit i ordered,Cammie and HG really came through, got it up and running...and this thing is bad ass..every pro I have is amazing..and HG truly has the drop on every other LED unit out there, these are amazing lights and produce amazing results..worth every penny of investment .

Remember, you can never get back the time or the harvest you lost
to your HIDs
but you can always get your money back with Hydro Grow.

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