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Johnson Grow Lights CX-4

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  • Johnson Grow Lights CX-4
  • Johnson Grow Lights CX-4
  • Johnson Grow Lights CX-4


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The Johnson CX-4 LED grow light utilizes Top-Bin Citizen CLU048 3000K LES Chips while using less energy and placing significantly less heat into the grow environment. This light will replace a 400 watt HPS while only drawing 230 watts. 6 units maybe daisy-chained together to cover a larger area.

Growers can expect up to 1.5 grams/watt with this fixture depending on genetics and environment.

High CRI

Boasting a 80+ CRI (color rendering index) and 3500K spectrum, Johnson Grow Lights provide sun-like light nutrition for robust, healthy growth and flowering. The 80+ CRI ensures that the light provided will be used efficiently by the plants. Flower quality and resins are also increased from the added blue wavelengths and decrease in radiant heat into the canopy. 

Typical HPS lamps only have a CRI of <40. This means that the areas in the center of the light pattern surpass the light saturation point of the provided wavelengths and lack the other wavelengths that are essential to optimum plant growth and health.

Even light spread

HID fixtures typically use a single lamp and reflector. Johnson Grow Light contain multiple light sources which promote better penetration and a more even light spread. An even light spread contributes to the plants ability to absorb the provided light.

Low Heat

A typical 1000 watt HPS fixture introduces 3500-4000 BTU's of heat into the growing environment. Johnson Grow Light fixtures introduce only 800 BTUs when air-cooled and 1600-2000 BTU's when standing-alone in the grow environment. 


Additional info:

View Johnson Grow Lights on the Heavy-T Grow Show


McCREEs action spectrum




Model/SKU: CX-4/jcx-4

Power output: 230 watts

HID equivalent: 400 watts

LEDs: 4 x Top-Bin Citizen CLU048 3000K LESs (light-emitting surface); 3500K

LES chip width: 35mm

    PPF: 417 umol/s

    PPFD: 1120 umol/s/m2 in a 2' x 2' area

    Coverage area: 2" x 2" (4 sq ft)

    Thermal management: Internal cooling fans

    Daisy chain: Yes, up to 6 units

    Dimensions: 14”x 14”x 3.5”

    Operating temperature: Avoid extreme ambient heat

    Operating/input voltage: 85-265 VAC; 50Hz-60Hz

    Recommended height above canopy: 24"-36"

    Weight: ~10 lbs

    Additional details: CSA certified

    Product includes: Fixture and cord

    Recommended for: Grow tents; Full-cycle growing from seedling to flower; Soil, hydroponic, aeroponic, or aquaponic systems

    Manufacturer's Warranty: 3 year full

    Johnson Johnson Grow Lights CX-4 Product #: 6682571974 Regular price: $549.00 $$549.00 Available from: Johnson New In stock
       30 day returns | 3-year full warranty

       Authorized dealer of this product

    Commericial Grow? You may be eligible for a huge energy rebate. Contact us to learn more.