Description
Philips 400W HPS Retro White ED18 – Dual Spectrum for Full-Cycle Plant Growth
The Philips 400W HPS Retro White ED18 is a specialized high-pressure sodium lamp designed to produce a broader light spectrum than standard HPS bulbs.
Delivering a mix of red, orange, and supplemental blue light, this dual-spectrum lamp supports plants through both the vegetative and flowering stages, making it an excellent all-in-one solution for growers looking for simplicity and efficiency.
Its 400W power level is well-suited for small to medium indoor grow spaces, offering reliable performance and good light coverage.
🔧 Key Features
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Dual Spectrum Output – Red-rich light for flowering combined with supplemental blue for vegetative stages.
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Full-Cycle Capability – Designed to support plants from early growth to harvest.
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400W HPS Power – Balanced wattage for medium grow setups with moderate heat output.
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Retro White ED18 Technology – A broader light spectrum than traditional HPS bulbs.
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Compatible Fixtures – Works with 400W single-ended HPS ballasts and reflectors.
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Reliable Philips Quality – Durable lamp construction with stable light output.
✅ Why Choose This Lamp
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Convenient All-in-One Solution – Eliminates the need to swap bulbs between growth stages.
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Enhanced Spectrum – Provides extra blue light for stronger plant structure.
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Efficient Performance – Balanced energy use with dependable light output.
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Trusted Brand – Philips is known worldwide for consistent quality and innovation.
🎯 Ideal For
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Full-cycle indoor gardens
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Hydroponic and soil-based systems
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Small to medium grow rooms
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400W single-ended compatible fixtures
❓ FAQs
Q: Can this bulb be used for both veg and flowering?
A: Yes, its dual-spectrum design covers both stages.
Q: Does it produce more heat than a metal halide?
A: HPS lamps produce moderate heat; ensure good ventilation.
Q: What fixture does it fit?
A: 400W single-ended HPS fixtures with compatible ballasts.
Q: What’s the lifespan of the lamp?
A: Thousands of hours of use with consistent spectrum when properly maintained.
Q: Why choose a dual-spectrum lamp?
A: It provides flexibility for growers who prefer a single light for the entire grow cycle.