Growers Choice 315W CMH Lamp 3100K | 565 µmol/s SE Bloom

Growers Choice 315W CMH 3100K: Precision Gas-Fill Bloom Spectrum

The Growers Choice 315W SE CMH runs at 3100K with 565 µmol/s initial PAR output and a CRI of 87 — a warm ceramic metal halide spectrum that more closely matches natural sunlight than standard HPS or MH lamps. The precision gas fill inside the arc tube is engineered for enhanced spectral output that hits the red-weighted wavelengths growers target during flowering, while still carrying enough blue and UV to support balanced growth responses and tighter internodal spacing.

Low-Heat CMH Alternative to HPS for Flowering Rooms

CMH technology generates significantly less heat than HPS and MH at equivalent wattages, which matters in rooms where thermal management is already stretched thin. Rated at 10,000 hours, the lamp holds its spectral quality deep into the burn cycle. The single-ended design fits standard SE CMH fixtures and ballasts. Growers consistently report tighter internodal spacing and better yields on flowering plants compared to standard HPS — the fuller spectrum drives more complete photomorphogenic responses than the narrow red band HPS relies on. Also available in 4200K and DE 630W versions for growers who need different spectral profiles or fixture configurations.

Key Features

• 3100K Warm Bloom Spectrum: Red-weighted CMH output for flowering applications with enough blue and UV to maintain balanced growth responses and tight node spacing
• 565 µmol/s Initial PAR: Delivers strong photon output from a 315W draw for bloom rooms where thermal headroom matters more than raw wattage
• CRI 87: Higher color rendering than HPS means a fuller spectral distribution that drives more complete photomorphogenic responses in flowering plants
• Precision Gas Fill: Engineered gas chemistry produces enhanced spectral output with the specific wavelength ratios that CMH technology is known for
• 10,000-Hour Rated Life: Holds spectral quality and output consistency across the full service life before replacement is needed

Technical Specifications