Radium Sodium-vapour lamps

Brand & Market Context — Why Radium HPS Lamps Matter

Radium, the German lighting manufacturer with a long heritage in discharge lamps, offers its RNP (High-Pressure Sodium Vapour, HPS) series as part of its “discharge lamps” product group. 
For B2B channels (industrial lighting contractors, panel-builders using large luminaires, power-distribution installers), these lamps represent robust high-output sources designed for demanding environments — outdoors, in halls, lighting large zones.

Product Series & Technical Classes

• The Radium RNP-T and RNP-E series cover various wattages: e.g., 150 W, 250 W, 400 W, up to 1000 W. 
• Example specification: RNP-T 1000 W/230/E40: luminous flux ~130,000 lm, colour temperature ~2000 K, rated life ~20,000 h. 
• Lamp form-factors: tubular clear bulbs, various bases (E40 etc) designed for normal HPS luminaires.
• Efficiency: For example, RNP-T 100 W has ~103 lm/W and colour rendering index (CRI) ~25.

Application Scenarios

• Outdoor area lighting: warehouses, yards, perimeter zones — where high lumen output is required and cost per light source matters.
• Industrial halls with high ceilings: large-space lighting where an HPS lamp still makes sense when retrofit or existing systems are HPS-based and ballast infrastructure exists.
• Street lighting or infrastructure lighting where long service life and robust performance under ambient extremes are required.
• Retrofit of older HPS systems where full redesign to LED isn't yet justified or where luminaire compatibility drives continued HPS use.

Procurement & Specification Checklist for B2B Buyers

• Confirm wattage and base type: e.g., E40 base for many RNP-T lamps.
• Verify luminous output (lm) and efficacy (lm/W) to match luminaires and spacing requirements.
• Check lifetime ratings: example 20,000 h for 1000 W type. 
• Ensure the ballast and ignitor compatibility in your luminaire, since HPS lamps require appropriate gear.
• Consider colour temperature and CRI: HPS is typically ~2000 K, CRI ~25 — okay for general lighting but not ideal where colour rendition is important.
• Assess packaging / box quantities and MOQ: e.g., box quantity for 1000 W RNP-T is 12 pieces 
• Evaluate future proofing: given trend to LED, ensure you have availability of spares and late-life support for HPS systems.
• Document vendor traceability: as a brand-manufacturer, Radium supports B2B procurement with datasheets, batch info, servicing data.

Operational & Maintenance Benefits Radium HPS Lamps

• Fewer replacements: long rated life means fewer lamp changes — especially important in high-access-cost zones (skylights, high-ceiling halls).
• High output: one lamp can cover large areas, reducing number of luminaires and simplifying power distribution.
• Stocking strategy: for dealers, stocking a few key wattages (e.g., 150 W, 250 W, 400 W, 1000 W) covers many large-area use-cases.
• Clear specs and brand consistency: helps with tenders, warranty claims and service contracts — less risk for procurement.

Integration & Ecosystem Considerations

• Use alongside Radium’s other lamp categories (LED retrofit, halogen, fluorescent) for consistency in service and spares supplier.
• Ensure luminosity and distribution align with luminaire reflectors originally designed for HPS (many older industrial luminaires still have HPS reflectors) — this avoids mismatching.
• Consider upgrade path: even as HPS is reliable, many sites evaluate LED conversion — Radium’s broader portfolio helps transition.

Why Choose Bank of Lamps for Radium HPS Lamps

• We supply genuine Radium HPS lamps with full manufacturer documentation and traceability.
• Our EU-based warehouse supports efficient distribution across Europe, with consistent stock of Radium’s discharge-lamp portfolio.
• Our B2B-focused model supports panel-builders, industrial lighting contractors and maintenance suppliers needing bulk supply, repeat orders, and reliable lead-times.
• Real-time stock visibility and project-order support helps you lock in components for large-scale lighting contracts.