Complete Light Superplant 400 Watt Sylvania Grolux

The 400 Watt Superplant Sylvania Grolux lighting kit pairs the most popular wattage for indoor growing with proven Grolux dual-spectrum technology. The Sylvania Grolux 400W HPS lamp delivers 58,000 lumens with an enriched spectrum featuring 30% more blue than standard sodium lamps — suitable for both growth and flowering. The Superplant 400W magnetic ballast accepts HPS and MH lamps. Complete with mirror reflector and IEC cable, ready for grow tents of 100x100 cm. Reliable performance at an accessible price. Order from Plant & Flower.

Delivery : wednesday

2 Year Warranty 30 days retour

400W Superplant Sylvania Grolux — Proven Performance for 1 m² Growing Spaces

The 400 Watt Superplant Sylvania Grolux kit is the go-to choice for growers who need to cover a 100x100 cm tent without the cost of a digital ballast system. Built around the Sylvania Grolux dual-spectrum lamp, this complete package delivers serious light output at a price point that makes sense for growers prioritising results per euro spent.

Why the Grolux 400W Remains a Global Favourite

The Sylvania Grolux 400W is one of the most widely used horticultural HPS lamps for good reason. Its patented arc tube delivers measurably better performance than standard sodium lamps:

58,000 lumens at 400W — 145 lm/W efficiency, a significant step up from the 136 lm/W of the 250W model.
713 µmol/s PAR output — the metric that directly drives photosynthesis and plant development.
Dual spectrum: 30% more blue and 20% more red than conventional HPS, eliminating the need for a separate MH lamp during vegetative growth.
Lumen maintenance: 95% output retention throughout the lamp's rated life, ensuring consistent results cycle after cycle.

Superplant Magnetic Ballast

The Superplant 400W magnetic ballast is built for years of dependable service. No dimming, no digital interface — just a solid electromagnetic core that fires the lamp and maintains stable output. Compatible with HPS and MH lamps at 400W (E40 base), it includes a thermal fuse for overheat protection. For growers who want their setup running in minutes rather than configuring settings, the magnetic ballast is the most direct path from box to harvest.

Kit Contents

Ships with the Sylvania Grolux 400W dual-spectrum HPS lamp, Superplant 400W magnetic ballast, mirror reflector and IEC cable. Recommended coverage: 100x100 cm.

Fast shipping from our Belgian growshop. Ready for next-generation lighting? Explore our Bionic LED grow lights.

This pack contains