DLI DIODE SERIES TOPLIGHTING 357W LED

Description

DLI Diode Series Toplighting 357W LED is a professional-grade toplighting LED fixture from DLI (Dutch Lighting Innovations), delivering 357 watts of high-efficiency, broad-spectrum illumination designed specifically for uniform canopy coverage in commercial and high-performance indoor growing environments. We have been recommending DLI LED systems to serious UK growers since 2017 as a Dutch-engineered commercial lighting solution that brings true horticultural LED performance to indoor growing, and the Diode Series Toplighting represents DLI’s approach to high-efficiency, high-intensity LED growing at its most refined.

What Makes the DLI Diode Series a Commercial-Grade LED Solution

DLI is a Dutch company with deep roots in commercial horticulture, and the Diode Series reflects that heritage — it is engineered to the standards of professional greenhouse and vertical farm applications where consistency, efficiency, and service life are non-negotiable requirements. The 357W output is delivered through a high-density LED array using best-in-class diodes selected for their efficiency and spectral precision, producing a broad-spectrum output that covers the full PAR range with the blue and red peaks that chlorophyll absorbs most efficiently. The toplighting form factor is designed for installations where the fixture is mounted directly above the canopy, providing uniform photon distribution across the growing area below. DLI’s optical engineering ensures that the photons produced by the LED array are directed into the canopy efficiently rather than being lost to the sides, maximising the photon utilisation efficiency of the installation and reducing the wattage needed to achieve target PPFD levels.

How to Install and Use the DLI Diode Series 357W

Mount the fixture directly above the growing canopy using the suspension system appropriate for your installation — grow tent crossbars with rope ratchets for home grows, or ceiling mounting hardware for permanent commercial installations. Set the hanging height to achieve the target PPFD at canopy level — typically 600–800 µmol/m²/s in vegetative growth and 800–1200 µmol/m²/s in flowering for most strains. Use a PAR meter to verify distribution and adjust height for even coverage. Connect to a compatible controller or timer for programmed photoperiod management. Allow a 50–100 hour burn-in period for new fixtures.

Browse our full DLI LED and commercial lighting range for all fixture models, controllers, and accessories for professional-grade indoor growing installations. Contact us for advice on designing a DLI lighting plan for your specific grow room dimensions.

Browse the full range: Explore our LED Grow Lights range, part of the wider Grow Lights section at The Horticulture Company. Also in this range: ROOT !T 26W LINKABLE SEEDLING LED, LUMII BLACK 720W/960W LED, VARIDRIVE 720W LED, OMEGA INFINITY 3.0 PRO LED.