Osram Plantstar 400W 230V grow lamp

The Osram Plantastar 400W 230V grow lamp is a high-performance high-pressure sodium (HPS) bulb designed specifically for horticultural lighting. Manufactured by Osram, the Plantastar series provides a powerful light spectrum tailored to plant photosynthesis, helping growers achieve vigorous flowering and reliable crop performance.

This professional horticultural lamp produces strong light intensity with excellent canopy penetration, making it ideal for indoor grow rooms, hydroponic systems, and greenhouse cultivation.

What the Osram Plantastar 400W Lamp Does

The Plantastar lamp produces a red-dominant spectrum (around 2000K colour temperature) that encourages strong flowering and fruit production. It also includes a small amount of blue light to support balanced plant development and shorter growth cycles.

With a light output of around 56,000–56,500 lumens, the lamp delivers high efficiency and strong PAR (photosynthetically active radiation), helping plants convert light into energy for growth.

Key Features

• 400W high-pressure sodium horticultural grow lamp
• 230V operation with standard E40 fitting
• Approx. 56,000+ lumen output for strong plant growth
• Dual-spectrum output with additional blue light
• High PAR efficiency for photosynthesis
• Long lifespan and reliable performance

Perfect For

• Indoor grow rooms
• Hydroponic systems
• Greenhouse cultivation
• Flowering and fruiting plants
• Growers using 400W HPS lighting systems

How to Use

Install the bulb into a compatible 400W HPS fixture and ballast with an E40 socket.
Allow the lamp to warm up fully to reach maximum brightness.
Position the light at an appropriate distance from plants to prevent heat stress.
Replace the lamp periodically to maintain optimal light output and plant performance.