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The PHILIPS CDM Green Power 315W 3100K LEC bulb provides a warm full spectrum of 3100K light with high efficiency for indoor growing . LEC/CMH technology promotes vigor, dense flowering, and natural color in cannabis plants with controlled energy consumption.

The PHILIPS CDM Green Power 315W 3100K LEC bulb belongs to the family of ceramic lamps ( CMH/LEC ) recognized for balanced spectral mixing and excellent color rendering.
The ceramic arc tube delivers useful photons in the blue, green, and red ranges, as well as far-red fractions that promote compact architecture and uniform ripening.
With 315W of actual power and a color temperature of 3100K , this bulb performs well in growth and excels in flowering, offering superior penetration compared to sources of equal power.
The balanced spectral design improves metabolism, trichome density, and the visual appearance of the canopy—all highly valued in cannabis cultivation . Robust construction, stable ignition, and slow light output degradation combine to maintain performance for thousands of hours.
For new installations or cabinet upgrades, the LEC 315W format makes it easier to achieve PPFD targets with less heat load compared to older technologies, helping to stabilize VPD and energy consumption.
At Hydroponics Blanes , a trusted and leading Grow Shop in Spain , this lamp is recommended for spaces of 80–120 cm on each side, either as the main source or in combination with LED panels within hybrid LE grow light schemes, with discreet shipping throughout the country.
In controlled environments, the PHILIPS CDM Green Power 315W 3100K LEC bulb provides homogeneous light with excellent canopy penetration. The warm, sunny spectrum promotes nutrient uptake, compact calyx formation, and intense coloration. Combined with efficient extraction and cross-ventilation, the lamp maintains stable leaf temperatures, reducing stress and improving flowering consistency.
• Main source for medium-sized grow tents, balancing growth and flowering.
• Boost during flowering within mixed schemes (LEC + LED) to add penetration and useful red light.
• Improve visual quality thanks to high CRI, ideal for tissue inspection and diagnosis.
• Optimize consumption compared to older technologies, while maintaining the target PPFD with less heat emitted.
• Agronomic stability in demanding cannabis plant genetics.
A professional tool that fits into modular projects. The 315W LEC format works very well with high-performance closed or open reflectors, generating uniform coverage in 0.8–1.2 m². The spectral curve balances internodes and foliage mass, limits excessive stretching, and promotes flower density. In warm climates, the output per watt helps control heat spikes without sacrificing light intensity.
Electrical compatibility: Use only with a 315W LEC ballast/driver and a specific PGZ18 lamp holder. Check the equipment label before first use.
Assembly: Install on compatible reflector, fix firmly, clean fingerprints with cloth if the glass comes into contact with the skin.
Recommended height: 35–50 cm above growing canopies and 40–60 cm at flowering; adjust according to measured PPFD, foliar response and leaf temperature.
Photoperiod: 18/6 for vegetative; 12/12 in flowering with a reliable timer.
Climate: Maintain good airflow between lamp and canopy; check VPD within the target range for each stage.
Safety: Disconnect power before handling; allow for complete cooling; avoid water splashes; do not use with equipment not certified for 315W CMH.
Maintenance: blow dust off the reflector, check connectors, record hours of use to plan preventive replacements.
The price of the PHILIPS CDM Green Power 315W 3100K LEC bulb reflects its spectrum quality, lifespan, and photon flux stability. Hydroponics Blanes offers advice on sizing coverage, choosing a reflector, and scheduling replacements, as well as discreet shipping .
Available at Hydroponics Blanes , a leading and trusted grow shop in Spain . Our catalog features LEC and LED lights, climate control systems, and everything you need for indoor cannabis cultivation. We offer expert technical support and fast, discreet shipping .
The PHILIPS CDM Green Power 315W 3100K LEC bulb provides sunlight-like light with excellent penetration and rendering.