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Lumatek HPS 400 Watt
The Lumatek HPS 400 Watt delivers an impressive 56,500 lumens at 140 lm/W efficiency with a PPF of 700 µmol/s, positioning it among the highest-performing 400W HPS lamps currently available on the market. Built around Lumatek's high-grade PCA ceramic arc tube and pulse-start technology, this lamp provides optimal spectral output with exceptional PAR/PPF stability across its 28,000-hour rated lifespan. The reinforced construction is specifically designed for the high operating frequency of Lumatek electronic ballasts. Covers a grow area of approximately 100×100 cm with consistent and uniform photon delivery. Available at Plant and Flower with fast shipping throughout Belgium.
Lumatek HPS 400W – High-Efficiency Ceramic HPS for Mid-Range Indoor Cultivation
The 400W variant represents the workhorse of the Lumatek HPS lineup. With specifications that compete at the top of the 400W HPS category, this lamp delivers the photon density required for productive mid-range grows while maintaining the longevity and spectral consistency that define the Lumatek HPS platform.
Performance Data: 140 lm/W and 700 µmol/s
The Lumatek HPS 400W produces 56,500 lumens at an efficiency of 140 lm/W, a figure that places it above most competing 400W HPS lamps. The PPF of 700 µmol/s provides a precise, measurable indicator of photosynthetically active photon output. For growers who track performance metrics, this data point confirms that the Lumatek delivers more usable light per watt consumed than the category average.
28,000-Hour Lifespan: Redefining Replacement Cycles
At 28,000 rated hours, the Lumatek HPS 400W significantly outlasts most competing HPS lamps. This extended lifespan is a direct result of the PCA ceramic arc tube technology, which prevents chemical degradation of the internal gas fill. Where conventional HPS lamps experience progressive spectral shift and lumen depreciation, the Lumatek maintains stable colour temperature and PAR output throughout its operating life. Lumatek nevertheless recommends replacement every 6 to 12 months under intensive use to ensure peak photosynthetic performance.
System Integration and Grow Area
Designed for a grow footprint of approximately 100×100 cm, the 400W delivers sufficient photon density for vigorous growth and flower development across this area. The reinforced lamp construction, featuring strengthened seals and a robust arc frame, is optimised for the high-frequency output of Lumatek electronic ballasts.
- 56,500 lumens at 140 lm/W: above-average output and efficiency delivering measurable photosynthetic advantage.
- PPF 700 µmol/s: quantified photon output for data-driven cultivation planning and performance benchmarking.
- E40 base: compatible with magnetic and electronic 400W ballasts, with optimal results on Lumatek units.
Get the Lumatek HPS 400W from Plant & Flower with fast shipping throughout Belgium. Pair with a Lumatek 400W digital ballast and a reflector for a fully integrated lighting system.
How long does the Lumatek HPS 400W last and when should it be replaced?
The Lumatek HPS 400W carries a rated lifespan of 28,000 hours, significantly exceeding most competing HPS lamps. Lumatek recommends replacement every 6 to 12 months under intensive use to maintain optimal PAR and PPF levels. The PCA ceramic technology ensures substantially slower lumen depreciation than conventional HPS lamps throughout this period.
