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The Pure Light PROTON HPS 1000W 400V bulb is designed for large indoor grow rooms that demand power and uniformity. It features Double Ended technology, 400V operation, and a quartz glass element for high PAR levels and sustained efficiency in cannabis plants .

The PROTON HPS 1000W 400V bulb combines DE (double terminated) architecture with a stable arc inside quartz glass, allowing it to work with high-frequency ballasts and take advantage of an optimized spectrum for flowering without sacrificing vigorous growth in earlier stages.
In 400V systems, high-frequency switching improves light delivery, increasing photosynthetically active radiation compared to conventional HPS; in fact, the brand reports up to 35% more energy compared to standard bulbs.
All of this translates into excellent light penetration into dense canopies, great coverage on tables, and noticeable uniformity in SCROG or SOG setups. The lamp is designed for horizontal operation , a condition that maximizes uniformity and extends the lifespan of suitable DE reflectors.
In high-performance rooms, the system performs at its best with properly sized extraction, air recirculation, and a calibrated lamp-canopy distance to keep leaf temp under control.
As a primary light source, it covers large areas; in hybrid configurations, it coexists with perimeter LED grow lights that refine lateral coverage without excessively increasing the central heat load.
This approach ensures compact colas, mid-zone filling, and consistent aromatic profiles in cannabis cultivation .
To maintain flow and color, periodic cleaning of the reflector, verification of connections, and planning for replacement after several intensive cycles are recommended.
Designed for medium and large indoor grow rooms, it stands out for its uniformity across grow benches, depth reach, and photonic stability with DE reflectors. Ideal for production lines aiming for standardized grams/m² yields, with high ceilings, service corridors, and powerful extraction systems that remove 1000W of heat without creating adverse microclimates.
It is designed to promote massive flowering and ambitious yields, maximizing dry weight , resin production , and uniform maturation. The optimized spectrum and high PAR promote sustained flower development in cannabis plants , maintaining a sufficient base to support vegetative growth when the photoperiod is appropriate.
A proposal offering an excellent price-performance ratio for rooms aiming for high production figures per square meter. A competitive investment that pays for itself through higher effective PAR and 35% additional energy savings compared to standard HPS, provided the installation is properly calibrated.
Available at Hydroponics Blanes , a trusted Grow Shop and Grow Shop in Spain with discreet 24/48h shipping . Complementary catalog featuring DE reflectors, 400V high-frequency ballasts , controllers, and LED grow lights for creating efficient hybrid systems.
For large-scale projects that demand power and homogeneity, the PROTON HPS 1000W DE 400V bulb combines DE technology, 400V operation and quartz glass to enhance compact flowers and defined aromatic profiles in indoor cultivation .
Integrated with efficient ventilation and a rigorous maintenance plan, it drives consistent results in cannabis cultivation with high-density cannabis plants .
At Hydroponics Blanes you will find ready-to-assemble kits, expert advice and discreet shipping throughout the peninsula, along with LED grow light options that provide lateral coverage and refine energy efficiency in professional installations.
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