Description
OCL 750W XL Series is a high-output grow light from OCL (Oregon’s Only) in their premium XL Series, delivering 750 watts of precision-engineered LED illumination for large canopy coverage in commercial and high-performance indoor growing environments. We have been recommending professional-grade LED fixtures to UK growers since 2017 as the path to maximum yield and quality, and OCL’s XL Series represents their professional approach to high-wattage LED horticulture — built to commercial standards for growers who need reliable, high-intensity illumination at scale.
What the OCL 750W XL Series Delivers for Serious Growers
OCL designs its lighting systems for the demanding standards of professional cannabis and specialty crop cultivation, where yield consistency, photon efficiency, and fixture longevity are measured in commercial terms. The 750W XL Series delivers high-intensity illumination across a wide coverage area using carefully selected LED diodes driven at optimised current levels to balance maximum efficiency with long diode service life. The broad-spectrum output is engineered to support vigorous plant growth throughout the full growth cycle — from early vegetative establishment through peak flowering — with the spectral quality that drives terpene and resin production in addition to structural yield. At 750W, the OCL XL Series provides canopy coverage appropriate for a 1.5 x 1.5 to 2.0 x 2.0 metre growing area when mounted at the recommended height, delivering the PPFD levels that maximise productive photosynthesis in high-yielding cultivars.
How to Install and Operate the OCL 750W XL Series
Hang the OCL 750W XL using the included suspension hardware, positioning at manufacturer-recommended height above the canopy for your target PPFD. Use a PAR meter to verify canopy-level photon distribution and adjust height for uniform coverage. Run on a suitable timer — 18/6 for vegetative growth, 12/12 for flowering. Ensure adequate ventilation to manage the heat generated at 750W — an EC inline fan matched to the grow space is essential. Allow a burn-in period of 50–100 hours before beginning light-sensitive grow operations. Connect to a compatible dimmer or controller if adjustable intensity is required.
Pair the OCL 750W XL Series with a quality environmental controller, EC inline fan and carbon filter, and a premium nutrient programme for a complete professional indoor growing system. Browse our full commercial and professional grow light range for all fixture options.









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