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The Philips Green Power E40 600W-400V bulb is designed for high-performance indoor growing . This mixed HPS lamp boasts 98,000 lumens , an E40 base , 400V operation, and PIA technology for rapid restart. It offers a beneficial spectrum for flowering and extra blue light for compact vegetative growth in cannabis plants .

The PHILIPS Green Power E40 600W-400V bulb belongs to the Master Green Power series, designed for professional horticulture, lead-free and with a transparent outer bulb that promotes thermal stability and optical flow.
The sodium and xenon discharge tube optimizes efficiency, delivering approximately 98,000 lm with a particularly powerful red/amber spectrum for flowering and a superior blue input (≈ 30% more blue compared to classic HPS) that helps control internodes during growth.
It works with 400V high-frequency electronic ballasts — for example, Gavita or Lumatek — and a lead-free E40 socket, ensuring stable ignition, less flickering and more predictable thermal management than in magnetic equipment.
The PIA (Philips Integrated Antenna) technology allows for hot start-up and promotes extended lifespan; even so, it is advisable to schedule a change every 3–4 crops to avoid the typical loss of efficiency that reduces yield due to flow depreciation.
Although it is a mixed lamp, the brand itself advises against its use on cuttings and mother plants , where cooler photometry and lower DLI control are preferred.
In medium-sized rooms and closets, this 600W HPS bulb offers an optimal balance between light density and heat management, and can be combined with LED grow lights as a side booster to homogenize PPFD at low canopy levels.
In indoor growing , 600W at 400V is considered the standard for high performance due to its penetration and uniformity. The mixed spectrum facilitates the transition from vegetative growth to flowering without needing to be replaced, maintaining a compact structure during the vegetative stage and high flower density during the fattening phase. With appropriate reflectors and adequate ventilation, it's possible to cover medium-sized areas with stable uniformity, taking advantage of the added blue light to guide plant growth and the intense red light to maximize yield.
As a production tool, this HPS stands out for:
A cost-competitive solution per gram produced in performance-oriented installations. The combination of 400V HF , PIA , and mixed spectrum provides consistent output cycle after cycle. Ideal in packages with an electronic ballast and E40 reflector.
Available at Hydroponics Blanes , a trusted grow shop in Spain with discreet shipping . Specialized catalog for indoor cultivation with HPS, MH, and LED grow lights , as well as climate control, irrigation, and substrates for cannabis plants . Technical advice for sizing equipment and optimizing uniformity.
Key technical specifications : Mixed HPS | 600W | 400V HF | ≈98000 lm | E40 lead-free | Clear bulb | PIA with hot restart | Use: growth and flowering (not suitable for cuttings and mother plants) | Compatible with Gavita / Lumatek type electronic ballasts .
For those seeking consistency and uniform coverage in indoor growing projects, the PHILIPS Green Power E40 600W-400V bulb offers a balance between light penetration, efficiency, and operational handling.
Shop at Hydroponics Blanes with discreet shipping and expert support from a trusted Grow Shop that understands real cannabis cultivation needs.