Skip to content
Free Shipping on most orders over $175 | Sales Tax in NJ only
Free Shipping on most orders over $175 | Sales Tax in NJ only
Angled view of CX 2125 LED fixture highlighting diode layout, mounting hook, and iLOC control panel.

PHOTOBIO CX 2125 850W 347-480V S4 High Voltage LED Grow Light

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

🌿 Free shipping on $175+ orders in the USA

🌿 Canada, AK & HI: Add'l shipping charges

🌿 Price match guarantee, details here

Energy Rebates & Bulk Pricing Available

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

Cash Payment Discounts & Financing Options

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.

Maximize canopy performance with the 850W PHOTOBIO CX 2125 high voltage LED grow light delivering 2125 µmol/s and S4 spectrum.

850W high voltage LED with 2.5 µmol/J efficacy, 2125 µmol/s PPF, S4 spectrum, iLOC dimming, and IP66 durability for pro-level greenhouse grows.

The PHOTOBIO CX 2125 347–480V is the most powerful compact toplight in the PHOTOBIO lineup—delivering 2125 µmol/s of balanced S4 spectrum in an 850W slim-profile design. Built for high-bay greenhouses and commercial grows, it replaces 1000W DE fixtures 1:1 while offering better light distribution, deeper canopy penetration, and lower power draw.

The CX 2125 is equipped with premium Osram/Seoul diodes and features integrated iLOC dimming controls, passive thermal management, and a high-voltage 347–480V input for industrial-grade applications. This fixture is tough, efficient, and built for serious productivity.

Is the PHOTOBIO CX 2125 energy-efficient?

With a rating of **2.5 µmol/J**, this fixture outperforms standard HPS lights (typically 1.3–1.7 µmol/J) and even rivals some premium DE HPS units. You’ll reduce energy waste and heat load while delivering more light per watt—translating into stronger growth, higher yields, and lower operating costs over time.

Features

  • 2125 umol/s Photon Flux @ 347V
  • 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
  • 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

Spectrum

PPFD

Specifications

Item Code: PTB8854LS4X

Model: PHOTOBIO-CX 2125

Spectrum: S4

Application: Vegetative & Flowering

Photon Flux: 2125 μmol/s

Power: 850W

Efficacy: 2.5 μmol/J

Dimming: 0–10V

IP Rating: IP66

Weight: 27.55 lbs / 12.50 kg

Voltage: 347–480V

Lifetime to L90: ≥50,000 hr

Who should use this LED grow light?

  • Commercial and industrial growers operating on 347–480V infrastructure.
  • Facilities replacing 1000W DE fixtures with 1:1 swap and higher light output.
  • Operators scaling vertical grows needing compact, high-output lighting.
  • Advanced cultivators requiring spectrum control for veg and flower stages.
  • PX2 controller users managing photon output across multiple fixtures.

Best applications

  • Large-scale flowering rooms where 2125 µmol/s drives high-yield crops.
  • Vertical racks or single-level setups with limited overhead space (2.6" profile).
  • Growers needing passive cooling to reduce HVAC strain and boost efficiency.
  • Precision PPFD mapping with secondary optics for deep, even canopy reach.
  • Power-smart builds using AC Power Tree systems to reduce wiring and infrastructure cost.

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 grow equipment solution provider connecting you to 100+ brands and 60+ suppliers trusted and used in the best grow facilities across the country.

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.

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)