Spectrum King 840W Phoenix LED Grow Light

Rock Bottom Price
This item is heavily discounted and may not qualify for discounts unless bulk quantities are requested. Request Bulk Discount
Spectrum KingSKU: LED-SK-PHNX-840-ND-515P

Dimmer Option: No Dimmer
Plug Type: Nema 5-15P (120V)
Sale price$879


The Spectrum King 840W Phoenix LED Grow Light is an excellent option for photon-hungry plants able to tolerate intense light. The Phoenix 840 consumes 16% less power from the wall than normal HPS lamps while giving a respectable amount of light output, conserving energy, and managing heat more efficiently than other fixtures. If your crop demands extreme brightness, the Phoenix 840 is the light for you.

  • Full Spectrum: The Spectrum King 840W Phoenix LED Grow Light from Spectrum King LED is designed to match the quality and intensity of natural outdoor sunshine, allowing your plants to grow healthier and produce more fruit.  This full spectrum LED grow light provides the whole spectrum of colors seen in sunshine, exceeding any HPS light. Spectrum King LEDs Under our light, any species or genotype will thrive without having to second-guess the spectrum output.

  • Longer Lifespan: The Spectrum King 840W Phoenix LED Grow Light's Q-90 rated LEDs are designed to last 62,000 hours (over a decade of standard usage). This new generation of LED lights is designed with the personal farmer in mind, with production enhancement, cost savings, and longevity in mind. The lightweight, IP65-rated structure is designed to withstand hot, humid conditions.

  • True Sunrise / Sunset: The Spectrum King 840W Phoenix LED Grow Light has a controllable light intensity of 10%, allowing growers to simulate the dawn or sunset look. The Spectrum King's light spectrum has been researched and optimized to maximize development in both the vegetative and blooming cycles.

  • Unbeatable Performance: The Spectrum King 840W Phoenix LED Grow Light consumes 36% less energy than a typical high-pressure sodium (HPS) light. This light has Surge Protection, which is a first-of-its-kind dual surge immunity on the driver and LED board that redefines reliability.

The Spectrum King 840W Phoenix LED Grow Light's full spectrum LED grow lights produce wavelengths ranging from 380 to 79nm on a continuous basis. This encompasses both visible wavelengths (what humans experience as color) and unseen wavelengths such as ultraviolet and infrared. Our LED grow lights accurately replicate natural sunlight while also matching the intensities of classic HPS lamps.


  • PPF (400-700nm)₁: 2350 umol/s

  • PPE (400-700nm): 2.8 umol/J

  • Input VAC (50/60 Hz): 120-277V, 200-480V

  • Input Power @ 277VAC: 840W

  • Cooling BTU @ 277VAC: 2866

  • Operating Temp: -4 to 113ºF (-20 to 45ºC)

  • IP Rating: 65, Wet Location

  • LED Lifetime: Q90 = 62,000hrs

  • Warranty₂: 5 yrs

  • Weight (Frame + Driver): 22lbs (9kg)

  • Min Height: 6” (152mm)

  • Coverage Area: 5x5’

  • Dimmable₃: Dim to 0ff, 10-100% Resistive

  • Beam Angle: 120º

  • Fixture Dimensions: 47x43x4.3”, 1195x1095x109mm: 

  • Dual Surge Protection: 10kV Driver,  1.5kW per Board

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