Excalibur 320C 3 Array

Our NEXT GEN Excalibur!
Standard flat fixture design (no assembly required)
Innovative reflector design – 10 to 15% increase in PPFD vs no reflectors
RJ12 ports are standard on all of our X and C series grow lights
Multiple spectrums are available, contact us!
Samsung 301H EVO diodes and Samsung 351H 660nm diodes
Silicone Protective Coated Diodes – IP65
Inventronics EUD-320S driver
Fixture output 907 ePAR at 320w (2.83 PPF/W)
Discrete shipping
The Excalibur Series are Made in the USA

FREE SHIPPING! Use code ‘PULSAR‘ at checkout!




Excalibur 320C Series Product Description

The Excalibur 320C is the evolution of our Excalibur King LED fixtures. The 320C is a 2×4 fixture that can either be used by itself for vegetative purposes or in arrayed patterns for large flowering rooms. Perfect for 2×4 grow tents! The Excalibur 320C showcases the most cutting-edge LED technology from Samsung. Passively cooled with a robust heatsinks for an incredibly long lifetime. We offer these fixtures with a range of spectrum options focusing on price and efficiency (contact us for custom options!). Pared with the best Samsung LED technology, Inventronics drivers are our sole choice for LED drivers. High efficiency and incredibly low failure rates ensure constant uptime with zero maintenance costs.

Innovative Reflector Technology

We are proud to offer TRUE reflectors on our Excalibur X and C series fixtures. These reflectors offer 10 to 15% increase in PPFD efficiency due to their revolutionary performance and innovative design. Our PPFD readings speak for themselves! This is the highest performing 320w fixture on the market!

Excalibur-Reflector-Closeup-3 Excalibur-Reflector-Closeup-1 Excalibur-Reflector-Closeup-2

Fixture Controller Compatible 


Compatible with our GIL100 Touch Screen!

Excalibur 320C Spectrum 

Grow-it-LED offers several spectrum options for the Excalibur X series. Our standard offering is detailed below.

Alpha Spectrum

Diode Counts:

(576) 301H EVO 4000K

(96) 351H v3 660nm Red

Total: 672Diodes


Electrical Specifications

Power Draw 320 Watts
HPS/MH Replacement Wattage 600w HPS
Spectrum 4000K 301H EVO, 660nm 351H diodes
PAR efficacy PAR eff. is based on each spectrum, varying from 2.3 to 2.94+ Umol/J
PPF 907 ePAR 883PPF
Coverage Area 4′ x 3′ flower and 4′ x 3′ veg
Lifetime 75,000+ Hours (11.4 years of continuous use)
Driver Inventronics EUD series driver
Cables 6-foot industrial-grade SEEO Cord (Standard)
Plug 5-15P Standard Other NEMA Plugs are available
Dimming 0-10v Dimming capable, compatible with all RJ12 Dimming systems (GIL100 Touch Screen and LMA-14 adapter required for Trolmaster systems)
Hanger Built-in hanging holes
Warranty 5 year
Grams per watt 2.17 g/w (Expected)
Yield 694.4  Grams
Voltage AC 120V~277V
Amp draw 110V – 2.9A / 240V – 1.33A
BTU 1091.2
Dimensions W = 22.626″ L = 47.391″ H = 3.721″

Additional information

Weight 25 lbs
Dimensions 48 × 24 × 8 in
Plug Type

5-15P (120v) Standard, 6-15P (240v), L7-20P (277v)


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