SolarMAX MH Bulbs

SolarMAX Metal Halide (MH) Bulbs are engineered for strong vegetative growth, delivering a blue‑dominant spectrum that supports compact plants with tighter internodal spacing. This makes them ideal for mother plants, cuttings, and any stage where dense, leafy structure is the priority.
Designed to run on both MH and HPS ballasts, these bulbs offer flexibility for growers using mixed lighting systems. Manufactured in Germany by an ISO‑certified facility with decades of lamp‑making experience, SolarMAX MH bulbs provide consistent output and dependable performance for indoor horticulture.
Their stable ignition characteristics and compatibility with standard single‑ended fixtures make them a practical, reliable choice for growers who want predictable vegetative results without unnecessary complexity.

Key Features:

• Promotes compact vegetative growth - Blue‑dominant spectrum encourages tighter internodes and strong leaf formation.
• Flexible ballast compatibility - Operates on both HPS and MH ballasts for easy integration.
• Ideal for mothers and cuttings - Supports consistent vegetative development for propagation and long‑term plant maintenance.
• German manufacturing quality - Produced in an ISO‑certified facility with over 40 years of lamp expertise.
• Stable ignition behaviour - MH bulbs may take up to 5 minutes to ignite, especially on HPS ballasts, which is normal.
• Correct wattage matching required - Bulb wattage must match ballast wattage for safe operation.
• Single‑ended design - Fits standard horticultural fixtures.
• Not dimmable on digital ballasts - MH bulbs must run at full rated wattage to avoid damage.

Operating Instructions:

• MH bulbs cannot be dimmed on digital dimmable ballasts.
• Always match bulb wattage to ballast wattage (e.g., 600w bulb with 600w ballast).
• Do not run a lower‑wattage MH bulb on a higher‑wattage ballast, even if dimmed.
• MH bulbs may take up to 5 minutes to ignite, especially when used on HPS ballasts. 

Care and Maintenance:

• Allow full warm‑up and cool‑down cycles
  HPS lamps are sensitive to thermal shock. Always let the bulb reach full operating temperature before switching off, and allow it to cool completely before turning it back on. This protects the arc tube and extends service life.
• Handle only when cool
  Never touch the bulb when hot. Allow at least 10 to 15 minutes for cooling before removal or adjustment.
• Avoid touching the glass with bare hands
  Oils from skin can create hot spots on the glass envelope. If contact occurs, clean the bulb gently with isopropyl alcohol and a lint‑free cloth.
• Keep fixtures and reflectors clean
  Dust and residue reduce light output. Wipe reflectors and glass covers regularly to maintain maximum lumen delivery.
• Replace on a schedule
  Although the rated lifespan is 24,000 hours, horticultural performance typically declines after 12 months of daily use. Most growers replace their HPS lamps annually to maintain consistent results.