Sylvania Grolux High Pressure Sodium 600W 400V Lamp UK | Powerful Grow Light Bulb

💡 Sylvania Grolux High Pressure Sodium 600W 400V Lamp — Guide & Product Information

🌿 Powerful Grow Lighting for Indoor Cultivation

The Sylvania Grolux High Pressure Sodium (HPS) 600W 400V Lamp is a premium HID grow light bulb designed to support robust plant development in indoor grow rooms and tent setups. With advanced arc tube technology, this lamp delivers maximised Photosynthetically Active Radiation (PAR) for strong plant performance throughout vegetative and flowering stages. :contentReference[oaicite:1]{index=1}

This lamp is optimised to deliver:

• ✔ Enhanced red spectrum for improved flowering and yield
• ✔ Superior lumen maintenance — up to 95% at end of lamp life
• ✔ Strong PAR intensity for deep canopy penetration

For more detail on how lighting spectrum and PAR affect plant growth, see our blog: The Role of Grow Lighting in Hydroponics: Maximising Yield and Nutrient Absorption.

📏 Compatibility & Installation

The Sylvania Grolux 600W lamp features a standard E40 cap and is compatible with **400V electronic or magnetic HPS ballasts** commonly used in grow rooms. It is a direct replacement for similar wattage HPS lamps and can be used alongside quality reflectors and lighting components. :contentReference[oaicite:2]{index=2}

Consider pairing this lamp with a suitable ballast such as the LUMii BLACK Electronic Ballast from our lighting range to achieve consistent, reliable performance.

🌞 Application & Benefits

• ✔ Suitable for grow tents, grow rooms, and greenhouse setups
• ✔ Excellent for flowering and fruit production stages
• ✔ Supports strong plant structure and development
• ✔ Works with quality reflectors in the reflectors category

📏 Technical Specifications

• ✔ Lamp Type: High Pressure Sodium (HPS)
• ✔ Wattage: 600W
• ✔ Voltage: 400V
• ✔ Base: E40 standard horticultural cap
• ✔ High PAR output for plant growth and flowering
• ✔ Excellent lumen maintenance throughout lamp life

❓ FAQ

Can the Grolux lamp be used for all growth stages?
Yes — this HPS lamp supports both vegetative and flowering stages, particularly where strong red spectrum is beneficial.

Do I need a special ballast for this lamp?
No — it pairs with any compatible 400V HPS ballast rated for 600W.

What reflector should I use with this lamp?
Use a reflector designed for HID lamps, such as those found in our reflectors category, to maximise light spread.

Will this lamp help increase yield?
The enhanced red spectrum and high PAR output of this lamp promote strong flowering and can contribute to improved yields when integrated with correct ballast and reflector setups.