Ushio HiLux Gro 315W CMH 4200K: Near-Sunlight Spectrum for Vegetative Growth
The Ushio HiLux Gro 315W CMH 4200K pushes 32,000 lumens at 100 lm/W with a CRI above 95 — near-perfect color rendering that places this lamp closer to natural sunlight than virtually any standard MH or HPS alternative. The 4200K color temperature provides a blue-dominant spectral distribution optimized for photosynthesis efficiency, driving the healthy, robust plant growth that characterizes a strong vegetative phase. The ceramic µmol output remains within the PAR spectral range where plants metabolize light most effectively.
15,000-Hour CMH Lamp Engineered for Consistency and High Performance
Rated at 15,000 hours, the HiLux Gro 4200K maintains its spectral quality and output consistency across a long service life. Operating at 3.15A with a 6–8 minute hot restart time, the lamp runs on standard C182/O or electronic ballasts and fits PGZX18 base fixtures. Ushio built the HiLux Gro line to assure consistency in quality across every lamp — batch-to-batch uniformity matters when a commercial facility runs dozens of fixtures and needs every position to deliver the same spectrum. The 4200K profile supports both vegetative growth and full-cycle applications where the blue-rich output benefits overall plant structure.
Key Features
- CRI >95 Near-Sunlight Spectrum: Near-perfect color rendering delivers a spectral distribution closer to natural sunlight than standard MH or HPS alternatives provide
- 32,000 Lumens at 100 lm/W: Strong lumen output and solid efficacy from a 315W platform that keeps heat manageable in rooms with limited cooling capacity
- 4200K Vegetative Spectrum: Blue-dominant output promotes tight node spacing, thick stems, and strong branching structure during the vegetative growth phase
- PAR-Optimized Ceramic Output: Ceramic µmol output stays within the photosynthetically active radiation range for maximum metabolic efficiency in plants
- 15,000-Hour Rated Life: Long service life with consistent spectral output reduces replacement frequency and per-cycle lamp costs for commercial grows
Technical Specifications
| Specification | Value |
|---|---|
| Lamp Type | Ceramic Metal Halide (CMH) |
| Wattage | 315W |
| Color Temperature | 4200K |
| Lumens (@ 100 hrs) | 32,000 |
| Efficacy | 100 lm/W |
| CRI | >95 |
| Rated Life | 15,000 Hours |
| Operating Current | 3.15A |
| Hot Restart Time | 6–8 Minutes |
| Burning Position | BU ±90° |
| Ballast Compatibility | C182/O or Electronic |
| Growth Phase | Vegetative / Full Cycle |