SunMaster 600W Metal Halide Bulb

A blue-rich metal halide for strong, sturdy vegetative growth

The SunMaster 600W Metal Halide is built for the vegetative stage, delivering the blue-rich spectrum young plants need for tight internodal spacing and compact, sturdy structure before the switch to flower. SunMaster is known for high-quality, reliable bulbs with a spectrum tuned to get the most from plants at each stage. It can be run into flowering, but for the full benefit of the red spectrum most growers switch to a dedicated HPS or dual-spectrum lamp once bloom begins.

Key Benefits

• Blue-rich MH spectrum ideal for the vegetative stage and healthy, compact growth
• Sturdy structure from tighter internodes, giving plants a strong frame for flowering
• High-quality, reliable build for consistent output over the lamp's life
• Standard 600W fitting, a straight swap in any 600W HID setup
• Optimised spectrum from a brand trusted for stage-specific horticultural lamps

Leggy, stretched seedlings under the wrong spectrum?

Run plants under a red-heavy HPS in veg and they tend to stretch, with weak stems and wide internodes. The SunMaster 600W MH gives the blue spectrum that keeps vegetative growth compact and sturdy, building a strong frame before you flip to flower.

How to Use

• Run during the vegetative stage in a standard 600W HID fitting
• At flip to flower, either continue or swap to an HPS or dual-spectrum bulb for the full red spectrum and better flowering
• Replace once output drops to maintain spectrum and intensity