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Black Dog LED's PhytoMAX-3 4SP Grow Light

Original price $0.00 - Original price $0.00
Original price $0.00
$789.00 - $789.00
Current price $789.00

At 205 actual watts and 437 μmol/s total photobiological photon flux (PBF), the patented PhytoMAX-3 4SP LED grow lights will yield 11 ounces to 1.5+ pounds of dried, cured, and trimmed flower per light.

With PhytoMAX-3, the most powerful and reliable, truly full-spectrum (350-750nm, UV to NIR PBAR) LED plant to grow lights! The PhytoMAX-3 4SP uses only the highest-quality, latest-technology, top-bin LEDs to deliver Black Dog LED's proprietary full-cycle Phyto-Genesis Spectrum® evenly over the entire footprint, with unprecedented PAR levels, canopy penetration, and yields!

Recommended for full-cycle growth in tents / areas from 2.0' x 2.0' to 3.5' x 3.5'
Yields 11 ounces to 1.5+ pounds per light!


New Features

Daisy Chain Compatible

Running multiple lights on one outlet means less infrastructure- up to 20 amps on one outlet.

Large Flowering Footprint

PhytoMAX-3 4SP has a larger area of coverage with up to 3.5' x 3.5' per light.


Dimmable from 15% - 100% with industry-standard 0-10V dimming controllers. 

More Powerful Spectrum

3.4% ultraviolet (< 400nm) and 20% violet (400 - 450nm) light provides better canopy penetration; Photon Flux Efficacy (PBAR 280 - 800nm): 2.15 μmol/J

Bigger Yields

11 ounces to 1.5+ pounds per light!

(Depending on strain, environment and growing skills)

Photon Flux Efficacy 2.13 μmol/J PBAR (280-800nm)
Total Photon Flux 437 μmol/s PBAR 

Footprint Minimum Recommended Area Maximum Recommended Area

2.5' x 2.5' (6.25 ft2)

4.5' x 4.5' (20.25 ft2)


2.0' x 2.0' (4 ft2)

3.5' x 3.5' (12.25 ft2)




PhytoMAX-3 4SP Specifications

Photon Flux (μmol/s)

















0-10V, 15% - 100%

Product Dimensions

15" x 15" x 4.5"


17lb (8kg)

True Wattage




Mean Time Between Failure

> 70,000 hours

Number of LEDs


Amp Draw

2.05A @ 100V

1.71A @ 120V

0.99A @ 208V

0.85A @ 240V

0.74A @ 277V

Standard Power Cord Length

8 feet

Power Cord Options

NEMA 5-15, NEMA 6-15, NEMA 7-15, Pigtails

AC Voltage Range

AC 100V~277V (50 / 60 Hz)

Power Factor

> 0.98

Operation Temperature Range

-4~104 °F



Fans Expected Life

> 70,000 hours

Order Confirmation

As soon as you place your order, you will receive an order confirmation e-mail. This means that we have received your order in our system and pre-authorized your credit card for the purchase.

As soon as we receive your order, we automatically reach out to our suppliers to confirm that it is in stock and available for immediate shipment.

If your item is on backorder or unavailable, we will reach out to you via e-mail to discuss the delays in shipping.

Order Shipment

We will send you tracking information within 4 hours of your order leaving the warehouse to the e-mail address your provide when checking out.

If you do not receive tracking information from us within 6 business days of your order, feel free to follow up with us at

Shipping Services

Our products always ship FREE via FedEx, UPS, USPS, or in the case of oversized items, via regional freight carriers.

Shipping times vary based on the item and your location, but delivery can be expected within 2-7 days of leaving the warehouse. If you have questions or need expedited delivery, please reach out to us and we will work to accommodate your specific needs!

At SproutRite, we are committed to providing the absolute best customer service in the grow industry! Our goal is to simplify the shopping process and ensure you are 100% satisfied with your purchase!

We understand that at times, you could need to return or cancel your order. Thought each supplier has different policies on returns, we will work to find the best solution for you.

Cancellations & Refunds

If you are unsatisfied with any Black Dog LED light, you can return it for a refund within 90 days from the original purchase date. A Return Merchandise Authorization (RMA) must be requested and the product shipped within 90 days of the original date of receipt. Returns are limited to one (1) light per customer. All items must be returned in "as new" condition in the original packaging and include all accessories. Lights that have been broken, damaged, altered, or had the housing opened are not returnable. "Damaged" includes but is not limited to water damage and damage resulting from being dropped and/or incorrect electrical connection.

Returns will be charged a 10% restocking fee. Shipping charges are non-refundable. We recommend using a carrier that has tracking capabilities when sending returns. The customer assumes responsibility for return shipping fees, insuring the return shipment, and filing any necessary claims for damaged or lost returns.

Other BlackDog Products

Items sold by Black Dog LED other than LED Grow Lights are final sale unless defective or damaged when received.

At SproutRite, we are fully committed to providing our customers with the very best products and customer service. We fully believe in going the extra mile to ensure that each customer is 100% satisfied with his purchase.

Our customers choose us because:

Exceptional Support

We want to hear from you! We strive to set the industry standard in Customer Service. Have a question or concern? Call us at (833) SPROUT2!

Have feedback that could help us improve how we serve our customers? We're here for you!

While many retailers strive to minimize customer engagement, we encourage it!

Lowest Price Guarantee

We work tirelessly to ensure that we offer the absolute best prices online! If you find another online store that offers a lower price than us within 30 days of your purchase, please let us know and we will refund your original payment for the difference. It's that simple.


Free Shipping

Always. No exceptions.

Industry Best Partners

We are not a resell shop or discount retailer that is here today and gone tomorrow. We work diligently to maintain long-term relationships with the garden industry's top manufacturers to bring you the highest quality and most innovative products available in today's market.

We stand by our partners.

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