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Free Shipping on most orders over $175 | Sales Tax in NJ only
Free Shipping on most orders over $175 | Sales Tax in NJ only
PHOTOBIO CX 2125 850 Watt S4 Full Spectrum LED Grow Light LED light PHOTOBIO

PHOTOBIO CX 2125 850 Watt S4 Full Spectrum LED Grow Light

by PHOTOBIO
$999.00 - $999.00
$999.00
$999.00 - $999.00
$999.00

🌿 Free shipping on $175+ orders in the USA

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Energy Rebates & Bulk Pricing Available

SAVE BIG on your grow setup! Email or call us at (973) 206-7590. For rebates eligibility, click here.

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Get an additional 3% off when you pay by ACH, Money, or Zelle. Select your option at check out.

We accept all major credit cards, crypto and Paypal 0% credit plans. More details here.

Full Manufacturer’s Warranty

You buy it, we back it! Your purchase is fully covered with a manufacturer’s warranty. More details here.

Upgrade to PHOTOBIO CX 2125 for Maximum Photon Output and True 1000W DE Replacement Without the Extra Energy Costs

Get to Know the PHOTOBIO CX 2125 100-277V S4 Full Spectrum LED Grow Light

The PHOTOBIO CX 2125 is the most powerful LED fixture in the PHOTOBIO lineup, designed for horticultural professionals who demand maximum photon output, better canopy penetration, and lower power consumption. With an impressive 2,125 µmol/s output at 2.5 µmol/J efficiency, this 850W LED grow light outshines traditional 1000W DE fixtures—delivering higher intensity, better distribution, and full-spectrum efficiency. Its 2.6" slim profile maximizes vertical grow space, while passive cooling fins maintain low operating temperatures for consistent, high-performance lighting.

Is the PHOTOBIO CX 2125 Energy-Efficient?

Yes. With 2.5 µmol/J efficacy, the CX 2125 outperforms 1000W DE HPS (1.7–2.1 µmol/J) while reducing energy waste and heat output. Compatible with Autopilot PX controllers and PHOTOBIO’s AC Power Distribution Tree, it allows seamless multi-light integration, cutting infrastructure costs while maximizing yield potential.

Features

  • 2125 umol/s Photon Flux @ 277V
  • 2087 umol/s PPF
  • 2.5 umol/J efficacy
  • 850W high power LED with slim vertical profile (24.1L x 14.2W x 2.6H inches) and 22.7 lbs
  • Superior canopy penetration by utilizing secondary optics
  • Osram/Seoul diodes produce the S4 (Full) Spectrum
  • 1:1 direct 1000W DE replacement utilizing similar footprint
  • iLOC Integrated Light Output Control with digital screen for monitoring output levels
  • Precisely control photon output when paired with Autopilot PX series controller (PX2 and above)
  • Passive heat-dissipating cooling fins
  • Includes 10’ PHOTO•LOC 0-10V control cable
  • C clamps included
  • Auto adjusting 120-277V input range
  • 5-year warranty
  • IP66-rated protection against water and dust
  • Fully compatible with optional PHOTOBIO AC Power Distribution Tree cabling system - enables interconnection of multiple fixtures on a single power drop - reducing electrical infrastructure costs*

What's Included?

  • PHOTOBIO CX 2125 Fixture
  • 10' 0-10V Control Cable
  • 5 x Eye Hook
  • 2 x C Hangers
  • Instructions

Download Resources

PHOTOBIO CX 2125 Video

Spectrum

PPID

Specifications

Model: PTB8850L54X

Fixture Type: Horticultural LED

Spectrum: S4 Spectrum

Typical Photon Flux Output: 2125 µmol/s @ 277V

Input Power: 850W

Efficacy: 2.5 µmol/J @ 277V

Input Voltage Range: 100-277V

Lifetime: L90: >50,000 hours

Optics: Primary Optics 90°/105°

Dimmable: 0-10V

Operating Environment: Wet Location

Ingress Protection Rating: IP66

Warranty Period: 5 Years

Driver Electrical Specifications

Fixture Power:

  • 867W @ 120V
  • 850W @ 208V
  • 848W @ 277V

Input Voltage Range: 100-277V

Max Voltage Range: 100-305V

Max Input Power: 901W

Power Factor: >0.97

Frequency: 50/60 Hz

THD: <10%

Driver Input Amperage Reference

Voltage | Typical Amperage | Max Amperage

  • 100V: 7.25A | 7.40A
  • 208V: 4.11A | 4.19A
  • 240V: 3.56A | 3.63A
  • 277V: 3.07A | 3.13A

Operating Conditions

Rated Operating Temperature: 77ºF / 25ºC

Minimum Operating Temperature: 47ºF / -20ºC

Maximum Operating Temperature: 104ºF / 40ºC

Operating Environment: Wet Location

Ingress Protection Rating: IP66

Material: N/A

Who Should Use This LED Grow Light?

  • Commercial cultivators replacing 1000W DE fixtures with higher efficiency.
  • High-performance growers maximizing photon output at 2125 µmol/s.
  • Vertical farming operations utilizing a 2.6" slim design for space efficiency.
  • Precision-focused growers using iLOC output control for light intensity adjustments.

Best Applications

  • Full-cycle cultivation benefiting from S4 full spectrum for vigorous growth.
  • Flowering optimization with enhanced red, far-red, and blue wavelengths.
  • High-density canopy penetration utilizing secondary optics for deeper reach.
  • Scalable grow setups integrating with PX controllers and AC Power Distribution Tree.

Why Shop with Grow Light Central?

“There’s a crapload of equipment providers out there. What makes Grow Light Central so special?”

“There’s a crapload of equipment providers out there. What makes Grow Light Central so special?”

Grow Light Central is a cannabis equipment solution provider connecting you to 100+ brands and 60+ suppliers trusted and used in the best cannabis facilies across the country.

With years of cannabis growing experience, Anthony, the owner and operator, personally ensures every order is handled right. No passing you off, no runaround, just the expert service and advice you deserve.

FAQs

How many watts do I need for my grow space?

The wattage depends on the size of your grow tent or room. A general guideline is 30-50 watts per square foot for high-light plants like cannabis. For example, a 2x2 ft area may need 100-200W, while a 4x4 ft area may require 400-600W for optimal coverage.

What is the difference between full-spectrum and red/blue LED grow lights?

Full-spectrum LED lights mimic natural sunlight, providing a balanced mix of blue (for vegetative growth) and red (for flowering and fruiting) light. Red/blue LED lights focus on specific wavelengths but may not support plants as effectively as full-spectrum lights.