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Spectrum King LED SK402  - LED Grow Lights Depot
Spectrum King LED SK402  - LED Grow Lights Depot
Spectrum King LED SK402  - LED Grow Lights Depot
Spectrum King LED SK402  - LED Grow Lights Depot
Spectrum King LED SK402  - LED Grow Lights Depot

Spectrum King LED SK402

  • Availability: In stock.

local_shipping  FREE discrete shipping to lower 48 states.
           Duties/taxes may be due for international orders.
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LED Grow Lights Depot Trust

    The Spectrum King SK402 LED grow light is the perfect solution for indoor growers and gardeners looking to save money and improve their plants’ health and harvest.

    The SK402 is a 460-watt patent pending full spectrum LED grow light made in the USA. It easily replaces 800-watt MH and HPS fixtures. Need something more powerful? Check out the SK602.

    All white, highly reflective 460 Watt Patent Pending Full Spectrum LED Grow Light made in the USA. The all-around white coating gives better intensity on the outer edge of your canopy.


    Coverage Area

    The SK402 covers up to a 16 sq ft in flower (4×4 ft) and up to36 sq ft in veg (6×6 ft).



    The white light spectrum is powered by Cree LEDs and can be used for both VEGETATIVE andFLOWER growth.



    Safety Certified and IP65 Rated

    Rugged waterproof housing for use in wet and humid conditions. Safe for outdoor use.


    Energy Efficient

    The fixture draws half the wattage of an 800-watt HPS while delivering similar light intensity.


    Advanced cooling technology

    Extra efficient heatsinks lower overall ambient room temperature.


    Additional features

    Great for supplemental greenhouse lighting.

    Nine-foot power cord and two large eye-hooks for hanging included. 

    *120° option available only


    Manual Dimmer (optional)

    Reduce light intensity down to 10%.


    Dual warranty

    • Guaranteed to maintain 90% or better light output for 3 YEARS with regular use
    • 5 YEAR mechanical warranty on all parts and labor

    Spectrum King is the only company to guarantee light performance over its lifetime with 3rd party certified data.





    Model/SKU: SK402/sk-402

    True wattage: 460 watts (dimmable to 10% with dimmer)

    HID equivalent: 800 to 1000 watt HID

    LEDs: High performance Cree LED diodes

    Beam angle: 120°

    LED lifespan: Up to 100,000 hours (at L70)

    LED Initial LUX (90˚ Reflector): 112,500

    Initial µmol (90˚ Reflector): 1950 µmol

    Spectrum: Full spectrum (near UV to IR)

    Coverage area:

    • Vegetative footprint: up to 5.8' x 5.8' (34 sq ft)
    • Flowering footprint: up to 4' x 4' (16 sq ft) 

    Hanging height: 

    • Vegetative: 30"-42"
    • Flowering: 12"-18"

      Daisy chain: No

      Dimensions: 13"W x 13"H x 11"D

      Product weight:  25 lbs

      Body Lens: Glass

      Body Case Material: Die cast aluminum

      Voltage: AC 120V~240V (480 VAC Available upon special order)

      Work frequency: 50~60 Hz

      Cord length: 9'

      BTU: 1,534

      Certifications: IP65 rated

      In the box you'll find:

      • 1 x SK402 LED grow light
      • An 9-foot, 120V or 240V power cord

      Manufacturer's warranty:3 years on light intensity, 5 years on parts and labor 


      Spectrum King SK602 Review

      Free Shipping in the USA

      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. As soon as we receive your order, we automatically reach out to our warehouse to confirm the product is in stock and is available for immediate shipment. In rare cases, if the product is on backorder or unavailable, we will contact you immediately and ask if you would like to wait for the product to become available 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). We will send you tracking information as soon as it is available. If you do not receive tracking info within 5 business days of your order, feel free to follow up with us via email.

      U.S. Shipping

      We offer FREE shipping in the USA via FedEx, UPS, or USPS. Expedited shipping is usually available for an extra cost. Contact us before your purchase if you prefer an expedited shipping method.

      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 most P.O. boxes, except when shipped via UPS.

      International Orders

      Nearly all of our brands can be shipped internationally using FedEx, UPS, USPS, DHL or other couriers. Go through the checkout process to receive a shipping quote. We use a service called Webinterpret who acts as a parcel forwarder. They are a PayPal partner and are located in Folcroft, Pennsylvania, USA. Therefore, if you purchase a product through our international checkout system the item(s) will be shipped to the forwarding warehouse and then to you. In this case please allow a couple weeks (or more) for the products to reach you. Duties/taxes will be due at delivery when using the international checkout (parcel forwarding service). 

      If you do not want to use this service, email us to receive a shipping quote for items shipped outside of the United States. You may also place an order on our online store and shipping charges will be calculated and an invoice emailed to you to cover these charges.

      Optic LED products ship FREE worldwide (to any country). A lower value for customs purposes is typically declared on these products.

      Items shipped internationally from the US 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.

      Hassle-Free Returns

      We offer HASSLE-FREE return shipping in the U.S. if you are not 100% satisfied for any reason. Many brands have a 90-day return policy. See our fullReturn Policy for rules and guidance on returning an item after purchase and for brand-specific return dates. A 10-20% restocking fee (depending on brand) may apply for returns within the dates of the return policy.


      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.


      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 rightguaranteed! 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 USA via FedEx, UPS, USPS, or other popular couriers. 


      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). Other products may have a shipping cost available on the product page (some HLG products,Electric Sky)

      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 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 you order from us, we will match the competitor's price and give you an extra £7.73 for orders over £154.65 and £3.87 for orders under £154.65.

      If you find an online store that offers a better price than us within one month of your purchase, let us know and we will provide a partial refund to match the price. (Not valid for products on Amazon or eBay. Because we are a for-profit business, we may refuse to offer a price match in which we incur a loss. This is rare.)


      7) Easy Interest-Free Financing

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

      • PayPal Credit: No Payments + No Interest if paid in full in 6 months on purchases of £76.55 or more. Select PayPal at checkout and pay with PayPal credit. Apply now.
      • Sezzle: Buy what you want today and pay for it over four installments, interest-free. Look for the Sezzle button at checkout. LEARN MORE.


      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 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.


      Happy grows!

      Erik H.


      Customer Reviews

      Based on 16 reviews
      Very satisfied

      Lights came in good condition no damage and the discount is unbeatable. Highly recommend ledgrowlightsdepot

      First LED light!

      Purchased A Spectrum King SK-402 LED light last February. I have not one bad thing to say about Spectrum King or Grow Light Depot. The light is beyond all expectations I ever had. I love the fact there are no moving parts. No fans to quit on a guy AND its built rock solid. I know there are folks that consider LED to be inferior. Spectrum King has got it going on. For me this just buries the old Sodium Vapor lights. Less heat and less Juice. win win.

      Best LED I have used

      Excellent grow light but be sure to get the dimmer on it. Light is so powerful it has to be set to the placement distance, otherwise it can cook the plants.

      Dope Light

      I picked up the sk402 with the dimmer option. Simply put this light is badass. If you’re growing in a 4x4 spot this the light you want. Stoked on the purchase. And the company is awesome, happy helpful people. Great in every way.

      A lot of bang for the buck!

      Definitely a quality product above any Asian LED the spectrum king sk402 with dimmer has out performed any other light I've ever had. My plants love it, my roommate hates it (because of how bright it is) but because it's led, my pocket loves it. The terpene production is awesome on this light too! Definitely looking forward to using the sk602 in the future.