315W CMH PGZX18 Lamps – 3100K & 4200K Ceramic Metal Halide Bulbs

Looking for powerful full-spectrum lighting with exceptional colour rendering and plant performance? These 315W Ceramic Metal Halide (CMH) grow lamps are designed for use with PGZX18 fixtures and deliver high PAR output, long lifespan, and reliable results for both veg and flower phases.

Available in two Kelvin temperatures – 3100K (Agro) and 4200K (Daylight) – these lamps are compatible with all PGZX18 base fixtures, including the Lumatek Aurora. Each offers a tailored light spectrum to support different stages of plant growth.

???? Colour Spectrum Options

Lamp Type	Colour Temp	Spectrum Bias	Best For	Visual Tone
315W CMH 3100K PGZX18	3100K	Red/Orange Enhanced	Flowering or Full-Cycle	Warm white with reddish hue
315W CMH 4200K PGZX18	4200K	Blue/White Enhanced	Vegetative, Clones, Mothers	Cool daylight white

⚙️ Key Features

• ✅ High-efficiency 315W CMH ceramic arc tube technology
• ✅ PGZX18 base – twist-lock for secure fixture fit
• ✅ Compatible with digital square-wave ballasts
• ✅ CRI >90 – true-to-life colour rendering
• ✅ Pulse-start for fast startup, longer life & high lumen maintenance
• ✅ Ideal for professional and hobby growers alike

???? Compatibility

These lamps are compatible with all major 315W CMH grow light fixtures that use the PGZX18 base, including:

• Lumatek Aurora 315W CMH
• Maxibright Daylight 315
• Adjusta-Watt 315W CMH systems
• Other compatible PGZX18 fixtures

???? What’s Included

• 1 x 315W CMH Lamp (choose 3100K or 4200K)
• Protective packaging for safe delivery