Philips 315w CMH Lamp

The Philips 315W CMH Lamp is one of the most trusted ceramic metal halide lamps used in professional indoor growing. Designed to deliver a broad, sun-like spectrum, these lamps provide plants with the balanced light they need for strong vegetative growth, healthy development, and productive flowering.

Widely used in Maxibright 315W CDM lighting systems and other CMH fixtures, Philips CMH lamps are known for their consistent spectral output and reliable performance. The light produced closely replicates natural sunlight, helping improve plant health, nutrient uptake, and overall crop quality in hydroponics systems, coco, or soil grow environments.

Available in two spectrum options, growers can choose a lamp tailored to different stages of indoor growing.

Key Benefits

• Sun-like full spectrum lighting for healthy plant development
• High efficiency CMH technology for strong light output
• Promotes vigorous vegetative growth and productive flowering
• Improves plant health, flavour, aroma, and crop quality
• Compatible with Maxibright 315W Daylight ballasts and similar CMH fixtures
• Suitable for hydroponics, coco, soil, grow tents, and grow rooms
• Reliable industry-standard 315W CMH lamp used by professional growers

Technical Specifications

• Power: 315 W
• Lighting technology: Ceramic Metal Halide (CMH / CDM)
• Lamp base: PGZX18
• Philips MasterColour 942 efficiency: 1.7 μmol/W
• Philips GreenPower 930 efficiency: 1.9 μmol/W

Spectrum Options

Philips MasterColour 942 Daylight
• Blue-leaning daylight spectrum
• Ideal for vegetative growth and early plant development
• Encourages tight internodal spacing and strong plant structure
• Suitable as a main light source for young plants or supplemental lighting

Philips GreenPower 930 Agro
• Enhanced red spectrum for flowering and bloom stage
• Promotes stronger flowering development and improved bud formation
• Helps increase aroma, flavour, and final crop quality
• Ideal as a primary light source during flowering

How It Solves Grow Problems

Many indoor growers struggle with weak plant structure, excessive stretch, or poor bud development due to incomplete light spectrums. Philips CMH lamps provide a balanced spectrum similar to natural sunlight, which helps plants grow with stronger stems, tighter node spacing, and improved nutrient uptake.

Using the correct spectrum at each stage also improves flowering performance, helping plants develop denser buds with better flavour and aroma. This makes Philips CMH lamps a reliable choice for growers aiming to maximise yield and crop quality in hydroponic systems, coco, or soil grow setups.

How to Use

1. Ensure your grow light fixture is compatible with 315W CMH lamps using a PGZX18 socket.

2. Carefully install the lamp into the fixture without touching the glass with bare hands.

3. Connect the lighting system to a suitable 315W CMH ballast.

4. On first use, allow the lamp to run continuously for at least 15 minutes to properly stabilise the internal metals.

5. Use the 942 Daylight lamp for vegetative growth and the 930 Agro lamp during flowering for best results.

6. Maintain proper canopy distance and adequate airflow in the grow tent or grow room.