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Sylvania Grolux 250 Watt
The Sylvania Grolux 250 Watt HPS lamp delivers 34,000 lumens of dual-spectrum light at an efficiency of 129 lumens per watt, making it one of the most capable grow lamps in the 250W category. Sylvania's patented ARC tube technology maximises photosynthetically active radiation output, driving stronger photosynthesis across both vegetative and flowering stages. The enhanced blue spectrum component eliminates the need for a separate MH lamp during the vegetative phase. Rated for a grow area of 60×60 to 80×80 cm with standard E40 base compatibility for both magnetic and electronic ballasts. A proven and reliable choice for compact indoor cultivation setups. Order from our Belgian growshop today.
Sylvania Grolux 250W HPS – High-Efficiency Dual Spectrum Grow Lamp
The Sylvania Grolux 250W stands out in the 250W HPS lamp segment as a purpose-built horticultural light source engineered to deliver maximum photosynthetic output from a compact form factor. Backed by decades of Sylvania's lighting expertise, the Grolux series has become a global benchmark for indoor cultivation lighting.
Technical Performance Specifications
At the core of the Grolux 250W is a patented ARC tube that converts electrical energy into photosynthetically active radiation with exceptional precision. The lamp outputs 34,000 lumens at a colour temperature of 2050K, translating to an efficiency of 129 lm/W. Unlike standard HPS lamps that emit almost exclusively in the red-orange range, the Grolux incorporates an increased blue spectral component, enabling single-lamp operation across the full growth cycle.
Optimal Coverage and Heat Management
The 250W rating makes this lamp ideally suited for grow areas between 60×60 cm and 80×80 cm. The lower wattage produces less radiant heat compared to 400W or 600W alternatives, which significantly reduces the cooling load on ventilation systems in compact grow spaces. This thermal advantage allows growers to position the lamp closer to the canopy without risking heat stress, improving light penetration and uniformity across the grow area.
Compatibility and Setup
Equipped with a standard E40 mogul base, the Grolux 250W is compatible with both magnetic and electronic 250W ballasts. Pairing the lamp with a quality reflector is essential to maximise light distribution and minimise wastage. The lamp operates at 115V lamp voltage and draws a stable current, ensuring consistent output throughout its operational life.
- 34,000 lumens at 129 lm/W: top-tier efficiency for the 250W HPS category with optimised PAR output.
- Dual spectrum with enhanced blue: eliminates the need for a dedicated MH lamp during vegetative growth.
- E40 base: universally compatible with magnetic and digital 250W ballasts on the market.
Order the Sylvania Grolux 250W from Plant & Flower for fast delivery across Belgium. Pair it with a quality reflector and a 250W ballast to complete your lighting setup.
What grow area does a Sylvania Grolux 250W HPS lamp effectively cover?
The Sylvania Grolux 250W provides effective coverage for grow areas between 60×60 cm and 80×80 cm. Actual coverage depends on reflector type and hanging height. Using a wide-angle reflector can extend the footprint, while a focused reflector increases intensity at the centre of the canopy.