The Treegers GL420W LED Grow Light combines cutting-edge efficiency with compact design, delivering professional-grade performance for smaller grow areas. With an impressive fixture efficacy of 2.8 µmol/J and a PPF output of 1155 µmol/s, this fixture produces intense, uniform light ideal for a 1.0 × 1.0 m to 1.2 × 1.2 m cultivation zone. Its Full-Spectrum Fusion output promotes strong vegetative growth and abundant flowering, ensuring balanced development across the entire growth cycle.
Built for longevity, the GL420W features passive cooling for silent, maintenance-free operation and an IP66 rating for full dust and water protection. The slimline six-bar configuration enhances canopy penetration while maintaining excellent thermal management. Compatible with Treegers Precise T Dimmer and Growcast controller, it allows full 0–100% dimming control for precise environmental tuning. Reliable, efficient, and easy to install, the GL420W delivers exceptional value for professional and hobby growers alike.
High-Performance Efficiency
Delivers 1155 µmol/s at 2.8 µmol/J for optimal growth and energy savings
Full-Spectrum Fusion
Balanced light output for complete vegetative and flowering development
Compact & Durable
Design IP66-rated protection with passive cooling for long, silent operation
A compact, efficient, and powerful LED fixture designed for consistent results and long-term reliability in any grow space.
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
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