400W Philips Green Power

• Brand: Philips
• Series: MASTER GreenPower
• Power: 400 Watt
• Lighting Technology: High-Pressure Sodium (HPS)
• Application: Flowering phase
• Lamp base: E40
• Color temperature: 2000K
• Light output: 58,500 lumens
• Photon flux (PPF): 1,150 µmol/s
• Efficiency: 1.90 µmol/J
• Dimmable: Yes (suitable ballast required)
• Lifespan: Up to 30,000 burning hours
• Burning position: Universal
• Dimensions: 283 × 47 mm
• Weight: approx. 180 grams

The Philips MASTER GreenPower 400W HPS is developed for the flowering phase of plants and delivers a powerful 2000K spectrum with a high proportion of red and orange light. This optimally supports flower formation, fruit development, and compact flowering.

With a photon flux of 760 µmol/s, this lamp is ideal for medium-sized grow rooms where high light intensity is desired.

Suitable for

• Flowering phase
• Fruiting crops
• Grow tents
• Grow cabinets
• Hobby and professional growers

Recommended settings

HPS lighting produces relatively a lot of heat. Therefore, ensure sufficient ventilation.

Start of flowering phase

• 55–70 cm above the crop

Full bloom

• 40–55 cm above the crop

Regularly check the leaf temperature and adjust the distance if necessary.

Professional GreenPower technology

The GreenPower series is developed for professional horticulture and is known for its stable light output and excellent light maintenance. This ensures very consistent performance throughout its lifespan.

High-quality flowering spectrum

The warm 2000K spectrum stimulates powerful flowering and supports the development of flowers, fruits, and compact buds.

When to replace?

Although the lamp technically has a lifespan of up to approximately 30,000 burning hours, many growers recommend replacing an HPS lamp after approximately 10,000 to 12,000 burning hours to maintain optimal light output for plant growth.

Why choose the Philips MASTER GreenPower 400W?

• Specifically developed for the flowering phase
• 760 µmol/s photon flux
• Powerful 2000K HPS spectrum
• Professional Philips GreenPower quality
• Dimmable with suitable ballast
• High light output of 58,500 lumens
• E40 fitting
• Up to 30,000 burning hours lifespan