All $50+ Orders Get Free Delivery
Free shipping on all orders over $50
7-15 days international
23 people viewing this product right now!
30-day free returns
Secure checkout
60598017
Struggling with leggy, weak plants during the vegetative phase of your grow cycle?
The GrowPros Solutions ULTRA400 LED Low Heat Grow Light delivers specialized illumination specifically engineered for the vegetative stage, promoting compact growth, stronger stems, and robust root development.
Perfect for commercial vertical farmers, propagation specialists, and professional growers focusing on optimizing the critical vegetative growth phase before flowering.
This specialized system generates 1120 μmol/s PPF and 651 μmol/(m²·s) PPFD, providing your plants with the ideal light intensity for vegetative growth while its tailored blue and white spectrum promotes reduced internodal spacing and enhanced root development. With impressive 2.8 μmol/J efficiency, you'll maximize vegetative growth while minimizing electricity costs.
Engineered with vertical cultivation in mind, the ULTRA400's slim profile design integrates seamlessly with multi-tier grow racks, maximizing your growing space efficiency. The IP65 waterproof rating ensures durability and protection in humid growing environments, while the foldable design enables effortless installation without complicated assembly.
Built for commercial applications, this fixture supports 208-277V power outlets for reliable performance in professional growing operations. With diode lifetime exceeding 36,000 hours (L90) and driver longevity of over 50,000 hours, it delivers exceptional long-term value for vegetative growth applications.
Tailored blue and white light spectrum reduces internodal spacing and promotes stronger stems and robust root development.
Ultra-slim profile maximizes vertical growing space, fitting perfectly with two-tier or three-layer rack systems.
Durable construction with IP65 protection rating ensures reliable performance in humid growing environments.
Adjustable 0-100% dimming allows precision control over light intensity throughout different vegetative growth phases.
For optimal vegetative growth results, mount the ULTRA400 approximately 36 inches above the plant canopy. This mounting height provides the ideal PPFD range of 500-600 μmol/(m²·s) that's perfect for vegetative development while taking advantage of the fixture's low heat emission characteristics.
Important Note: The ULTRA400 is specifically engineered for vegetative growth stages only and is NOT designed for flowering applications. For flowering stages, we recommend transitioning to a full-spectrum lighting solution like the GrowPros Solutions Phoenix or Dragrow series.
The ULTRA400 LED Grow Light integrates seamlessly with TrolMaster environmental control systems using the LMA-14 adapter. This compatibility enables connection with the HYDRO-X, AQUA-X, TENT-X, and CARBON-X systems, providing comprehensive control over your vegetative growth environment from a single interface.
The built-in RJ12 daisy chain port allows for simplified connection of multiple fixtures to your control system, streamlining installation and enabling synchronized light scheduling across your entire vegetative growing area.
| Specification | Value |
|---|---|
| PPF (Photosynthetic Photon Flux) | 1120 μmol/s |
| PPFD (Photosynthetic Photon Flux Density) | 651 μmol/(m²·s) |
| PPE (Photosynthetic Photon Efficacy) | 2.8 μmol/J |
| Optimal PPFD Range for Veg | 500-600 μmol/(m²·s) |
The ULTRA400 is specifically engineered for integration with standard commercial rolling rack systems, making it the perfect solution for two-tier or three-layer vertical cultivation setups. Its slim profile and low heat emission maximize the effective growing area within your vertical space while maintaining ideal temperature conditions for vegetative growth.
The foldable design allows for quick deployment in vertical growing systems, eliminating complicated installation procedures. Simply unfold the fixture, hang it at the recommended height, and connect to power for immediate operation in your vertical farming configuration.
| Specification | Value |
|---|---|
| Wattage | 400W |
| Input Power | 120V-277V |
| Controller Compatibility | TROLMASTER+LMA14 |
| Dimming Control | 0-10V dimming (0-100%) |
| Daisy Chain Port | RJ12 |
| Recommended Mounting Height | 36 inches above canopy |
| Power Factor | >0.9 |
| Thermal Management | Passive |
| Working Temperature | 0°F ~ 104°F |
| Diode Lifetime | L90: >36,000 hrs |
| Driver Time | >50,000 hrs |
| Waterproof Rating | IP65 |
| Certifications | ETL |
| Installation | Foldable design, no assembly required |
The GrowPros Solutions ULTRA400 LED Low Heat Grow Light includes a 3-year limited warranty, protecting your investment against manufacturing defects. This comprehensive coverage reflects GrowPros Solutions' confidence in their product's durability and performance for commercial vegetative growing applications.
