Cultiv8 Retrofit Metal Halide Lamps – 250W, 400W & 600W Cultiv8 Retrofit Metal Halide Lamp
Cultiv8 Retrofit Metal Halide Lamp are designed to provide the ideal light spectrum for propagation and vegetative plant growth while offering the convenience of operating from your existing HPS ballast. Available in 250W, 400W and 600W, these retrofit lamps eliminate the need for a dedicated Metal Halide ballast, making them a practical and economical choice for indoor growers.
Metal Halide lighting produces a cool blue and white spectrum that closely resembles natural spring and summer sunlight. This spectrum encourages compact plant growth, shorter internodal spacing, thicker stems and lush green foliage, making it the preferred choice for seedlings, cuttings, mother plants and the vegetative stage of growth.
The Cultiv8 Retrofit MH lamp simply screws into a standard E40 reflector and operates from a matching wattage HPS magnetic or digital ballast. This allows growers to use one ballast throughout the entire growing cycle—simply run the Metal Halide lamp during vegetative growth, then replace it with a High Pressure Sodium (HPS) lamp when it’s time to flower. This convenient conversion system reduces equipment costs while simplifying your grow room setup.
Manufactured for reliable performance and consistent light output, Cultiv8 Retrofit MH lamps provide excellent PAR (Photosynthetically Active Radiation), ensuring plants receive the usable light needed for vigorous photosynthesis and healthy development. For optimum performance, Metal Halide lamps should be replaced periodically, as light output gradually declines over time even if the lamp continues to operate.
Whether you’re propagating seedlings, maintaining mother plants or building strong vegetative growth before flowering, the Cultiv8 Retrofit Metal Halide range delivers dependable performance and outstanding value for indoor growers.
Features
- Available in 250W, 400W and 600W
- Retrofit Metal Halide conversion lamp
- Operates from matching wattage HPS ballasts
- Compatible with magnetic and digital HPS ballasts
- Cool blue and white vegetative spectrum
- Promotes compact, vigorous plant growth
- Excellent PAR output
- Standard E40 mogul base
- Simple installation
- Ideal for hydroponic and indoor growing
Specifications
- Lamp Type: Retrofit Metal Halide (MH)
- Wattages: 250W, 400W, 600W
- Base: E40
- Spectrum: Blue/White (Vegetative)
- Ballast Compatibility: Matching wattage HPS magnetic or digital ballast
- Fixture Compatibility: Single-ended HID reflectors
Ideal For
- Seed germination
- Plant propagation
- Cloning
- Mother plants
- Vegetative growth
- Hydroponic systems
- Indoor grow tents
- Commercial grow rooms







