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Optic LED XL4 COB Array 400w - 520w (UV/IR) 3500k COBs  - LED Grow Lights Depot
Optic LED XL4 COB Array 400w - 520w (UV/IR) 3500k COBs  - LED Grow Lights Depot
Optic LED XL4 COB Array 400w - 520w (UV/IR) 3500k COBs  - LED Grow Lights Depot
Optic LED XL4 COB Array 400w - 520w (UV/IR) 3500k COBs  - LED Grow Lights Depot
Optic LED XL4 COB Array 400w - 520w (UV/IR) 3500k COBs  - LED Grow Lights Depot
Optic LED XL4 COB Array 400w - 520w (UV/IR) 3500k COBs  - LED Grow Lights Depot
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Optic LED XL4 COB Array 400w - 520w (UV/IR) 3500k COBs

  • Availability: Out of stock

    The XL4 COB ARRAY is for growers who demand more from their grows. Optic LED has now made it easy for you to get the best possible results in a 4'x4' grow space by delivering above commercial level light intensity along with even light distribution across the canopy.

    The FAR RED Array takes the full-spectrum white light CREE COBs to a whole new level by balancing out the spectrum for peak absorption so you will be able to grow significantly bigger flower that are more colorful and pack more resin than ever before. 

    Product includes:

    • 4 x Optic 1 XL 100 watt COBs (120° lenses included)
    • 1 x 120-watt Far-Red Bloom Enhancer 
    • Hanging frame (optional)





      Actual Power Draw: 520 watt max draw (COBs and Array)

      Lifetime: 100,000 Hours 

      Coverage Area for Flower: 4' x 4' area (1.2m x1.2m)

      Hanging Height:

      • Flower: 12"- 24" (.3m - .6m)
      • Veg: 24"-36" (.6m - .9m)
      • Seedling: 36"+ (.9m+)

      COBs: CREE XLAMP CXB-3590 (3500k Daylight White)

      Bloom Enhancers: OSRAM 3W LEDs 

      Bloom Enhancer Lenses: 120 degree Crystal Clear Wide Beam Lenses

      Bloom Enhancer Driver: Meanwell 120 Watt Dimmable Driver

      Optic 1XL Driver: Meanwell 100 Watt Driver

      Dimmer: 10% - 100% Dimmability (Bloom Enhancer Only)


      Thermal management: Passive Cooling from Overbuilt heatsinks

      PPF/Watt: 2.45 umol/J (Bloom Enhancer)  /  2.1 umol/J (COBs)

      Grams Per Watt: Up to 2.25

      Yield: Up to 1170 grams / 41.78 ounces (2.61lbs)

      PPFD FAR Red Bloom Enhancer Array (Average PAR): 2' x 2' Area @ 12" (.3m) Hanging Height PPFD: 810 umol/m2/s

       (Tested with Apogee MQ-500 PAR Meter)

      PPFD for XL4 COB ARRAY @520 watts: 

      15" Hanging Height

      PPFD: 732


      18" Hanging Height

      PPFD: 687

      Spectrum of Bloom Enhancer: Full Spectrum + FAR RED + UV & IR

      Spectrum of Bloom Enhancer & COBs Combined: Full Spectrum + FAR RED + Ultra Violet & Infrared

      Cables: 6 Foot attached power cord with On/Off switch

      Plug: USA, UK, EURO, Canada, Africa, Australia & many more (we automatically ship the correct power cord for your country)

      Dimming: On/Off Switch and 10%-100% dimmability (Bloom Enhancer only)

      Hanger: Rope Ratchets included for all fixtures 

      Recommended for:

      • Grow tents
      • Grow rooms (sll sizes)
      • Full-cycle growing from seedling to flower
      • Soil, coco coir, hydroponics, aeroponics, or aquaponic systems

      Optic LED (manufacturer's) warranty: 10-year lifetime warranty

      Packaging: Plain brown discrete packaging with no labels.

      Shipping: Free worldwide shipping to 60 countries & usually ship within 1-3 business days 

      • Taxes & duties may be required on international shipments. 
      • The shipment value is typically marked at a lower value so you will pay less for duties/import taxes.
      Countries with FREE Shipping:
      #1 United States
      #2 Canada (ships from Canada)
      #3 European Countries 
      #4 Australia
      #5 Japan 


      Countries that have to pay for shipping:
      #1 Mexico
      #2 Central America
      #3 South America
      #4 Middle Eastern Countries (India and surrounding area)
      #5 South Africa

      Shipping / Cancellations / Returns

      Order Confirmation

      As soon as you place the order, an order confirmation will be emailed to you. This means we have received your order and payment. Payment is captured as soon as the order is placed. In rare cases, if the product is on backorder or unavailable, we will contact you and ask if you would like to wait for the product to become available, switch your product, or have your payment refunded. If the item is available for immediate shipment (1-3 business days) we will submit the order for processing and arrange shipment.

      Order Shipment

      Most products ship within 1 to 3 business days from the date of your order (unless indicated on the product page). Some items take a bit longer to ship since they are built to order (i.e., Timber Grow Lights, ChilLED Tech, Trimmers, etc). We will send you tracking information as soon as it is available. 

      U.S. Shipping

      We are based in Portland, Oregon with warehouses nationwide. We offer FREE shipping in the lower 48 states (sometimes to HI and AK, too) via FedEx, UPS, USPS or other major couriers (product/brand dependent). Expedited shipping is usually available for an extra cost. Contact us before your purchase if you prefer an expedited shipping method and we will get you a quote.

      After the order is processed, allow 2 to 7 business days for the product(s) to reach you if shipped to a U.S. address. We can ship to PO boxes in some cases. We recommend using a street/residential address instead.

      International Orders

      Nearly all of our brands can be shipped internationally using FedEx, UPS, USPS, DHL or other couriers. Most quotes can be obtained at checkout. If not, please email us to receive a shipping quote for lights shipped outside of the USA. You may also place an order on our online store for items that require a quote and we will notify you via email on the exact shipping costs. 

      Some items/brands can be shipped for free.

      Items shipped internationally from the USA may have VAT, duties, taxes, and/or local charges due at delivery. These charges are the responsibility of the customer and not LED Grow Lights Depot.


      If you need to cancel your order, we recommend reaching out to us ASAP. We charge a 2.15% (credit card / ViaBill), 2.6% (PayPal), 6% (Sezzle) order cancellation fee once the order has been processed (before it has been shipped). We can accommodate most requests, but due to the different time zones and schedules that our warehouses ship from, the cancellation request may not reach the warehouse in time. Once the item has been arranged to ship or has shipped, the package will be treated like a 'return' and is subject to ship-back fees and restocking fees. All EZTrim orders are final and non-refundable or returnable.


      We offer return shipping in the USA if you are not 100% satisfied for any reason. Many brands have a 90-day return policy. See our full Return Policy for rules and guidance on returning an item after purchase and for brand-specific return dates. A 5-25% restocking fee (brand dependent) may apply for returns within the dates of the return policy. Reach out to us for exact return instructions and restocking fees for the item(s) that you purchased.

      If you have any questions or would like to check the availability of an item, you may email us here or call us at (888) 611-9305. Thank you for shopping with us.

      Shop All LED Grow Lights

      Happy grows!

      Erik H.


      Why shop at LED Grow Lights Depot? This is why...

      1) Thousands of Successfully Shipped Orders and Thrilled Customers

      We have been in business since 2014 and are a top-trusted online retailer offering honest grow advice and top-of-the-line LED grow lights and other grow/harvest/extaraction equipment. We have hundreds of 5-star product reviews from satisfied customers.


      2) Small, Family-Run, Veteran-Owned Business

      Founder/Owner Erik H. overseas that every customer is 100% satisfied with their purchase. If something is wrong, we will make it right, guaranteed! Call, email, or message us anytime and we will get back to you in about 1 business day or less (typically with-in minutes or hours during normal business hours). We have your back!


      3) Free Discreet Shipping in the USA 

      We offer FREE shipping in the lower 48 states via FedEx, UPS, USPS, or other popular couriers. We can ship most other products to Hawaii and Alaska for free too.


      4) Reliable International Shipping Available

      Nearly all of our brands can be shipped internationally using FedEx, UPS, USPS, DHL or similar couriers. Go through the checkout process to receive a shipping quote. Some products ship internationally for free (such as Optic LED). 

      Items shipped internationally from the US may have VAT, duties, taxes, and/or local charges due at delivery. 


      5) No Sales Tax in the USA

      Forget shopping locally or on other popular retail websites that charge tax. You can save a lot of money when buying though us since we do not charge tax in the entire USA.


      6) 100% Low Price Guarantee

      We strive to ensure that we offer the absolute best prices online. Rest assured that you are receiving the best online price when you shop with us.

      If you find a better price online before or after you order from us (for up to one month), we will match or beat the competitor's price.

      Although rare, we may refuse to offer a price match in which we incur a loss.


      7) Easy Interest-Free Financing

      Finance your purchase in minutes! See our available financing options below:

      Buy what you want today and pay for it over four installments, interest-freeLook for the Sezzle button at checkout. Get approved up to $2,500. LEARN MORE.

      Buy what you want today and split your purchase up to $500 into 4 monthly installments, interest-free. Up to $5,000 limit (with interest). Look for the ViaBill button at checkoutLEARN MORE.

      No Payments + No Interest if paid in full in 6 months on purchases of $99 or more. Get approved in seconds! Select PayPal at checkout and pay with PayPal credit or APPLY HERE


      8) We are Authorized Dealers offering a Manufacturer's Warranty

      You will buy confidently from us since only sell new, official products (no used items or clones). All warranties are new are 100% honored through the respective manufacturer.


      9) Safe, Secure, Discrete Transactions

      We accept major credit cards, PayPal, Google Pay, Apple Pay, Sezzle, ViaBill, and debit transactions. All card payments are processed through our encrypted SSL security processing system. Your identity is always protected.


      10) Hassle-Free Returns

      And just in case your purchase was not up to your standards, we offer hassle-free return shipping if you are not 100% satisfied for any reason. Many brands have a 30- to 90-day return policy. See our full return policy for details.


      --> Shop All LED Grow Lights

      Happy grows!

      Erik H.


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