Sunmaster Metal Halide Cool Deluxe lamps are, we believe, the industry leaders. Using MH lamps in veg as opposed to Dual Spectrum lamps throughout the plants life results in healthier plants early-on and shorter internodal length corresponding to increased yields come harvest. Always remember to switch to a Ssdium lamp (pure red or DS) for fruiting or flowering plants when the time comes!

Optimised for Vegetative Growth: Emits a cool white light spectrum, perfect for encouraging leaf and stem development during the early growth stages.
High-Intensity Output: Delivers a powerful 600W of light, ensuring deep penetration across the plant canopy for consistent growth.
Natural Daylight Spectrum: Mimics natural sunlight to help plants thrive indoors, making it ideal for growing leafy greens, herbs, and young plants.
Improves Plant Structure: Supports compact, robust growth, which sets a strong foundation for flowering and fruiting stages.
Energy Efficient: Provides high light output with lower energy usage, making it cost-effective for prolonged use in larger setups.
Durable Construction: Made with quality materials to ensure a long lifespan, reducing the need for frequent replacements.
Compatible with Standard Ballasts: Works with most 600W ballasts, allowing easy integration into existing lighting systems.
Reliable Brand: Sunmaster is a trusted name in grow lighting, known for quality products that deliver consistent results.

These 7200K versions are also the lamp of choice for adding extra blue spectrum to a lighting setup that contains mostly sodium lamps - adding around one halide lamp to every two sodium lamps dramatically increases overall plant health and is generally considered by most experienced growers as the optimum lighting mix.

These are, we believe, the best metal halide lamps on the market and they won't break the bank.

Highly recommended.

***Please retain original packaging for your lamps to validate the 12-month warranty***

Sunmaster 600W Metal Halide Lamp