Sylvania Lumalux Plus  67312 (LU400/PLUS/ECO) High Pressure Sodium Lamp — 400W | 2100K Warm Amber | 50,000 Lumens | Non-Cycling End-of-Life

The Sylvania Lumalux Plus® ECOLOGIC® 67312 (LU400/PLUS/ECO) Lamp is an industrial-grade, high-intensity discharge (HID) non-cycling high pressure sodium bulb engineered for municipal highway networks, public roadway corridors, large parking perimeters, shipping yard terminals, and airport tarmac assemblies. Producing a powerful 50,000 initial lumens of high-penetration 2100K warm amber illumination, this 400-watt bulb utilizes an advanced ceramic arc tube to achieve a 15% higher maintained lumen output over standard HPS across an elite 40,000-hour rated service life. Outfitted with a heavy-duty E39 mogul screw base and a robust ET23.5 hard glass envelope, it features an instant-shutdown non-cycling mechanical structure that prevents ballast cycling on standard ANSI S51 electrical circuits.

ADL Supply Expert Application & Replacement Guide

The Sylvania Lumalux Plus® 400W HPS linear lamp is an elite commercial outdoor utility baseline specified universally across municipal expressways, public high-traffic intersections, deep-water shipping yard perimeters, and large industrial high-bay manufacturing bays. Featuring an advanced ceramic discharge capsule core, this specialty lamp provides 15% higher maintained lumens at its mid-life lifecycle threshold relative to standard HPS lamps.

The principal operational advantage of the Lumalux Plus platform centers on its integrated non-cycling end-of-life shutdown mechanic: while standard high pressure sodium bulbs enter a continuous runway voltage loop at terminal life—extinguishing and re-striking repeatedly in a cycling pattern that destroys internal fixture igniters—the Lumalux Plus filters this electrical deviation to shut down and remain permanently off. This immediate lockout protects underlying control gear from voltage stresses and allows maintenance teams to instantly identify failed fixtures during drive-by lighting checks.

Critical ANSI S51 Ballast Requirements and 4kV Pulse-Rated Sockets: Facility managers and electrical contractors implementing roadway lighting sweeps must observe structural equipment limits prior to checkout: this lamp strictly requires a high pressure sodium ballast track matching ANSI S51 protocols coupled with a heavy-duty 4,000V (4 kV) pulse-rated mogul socket assembly. Legacy mogul sockets lacking this 4kV safety ignition insulation baseline will experience continuous creeping arc-overs, creating catastrophic fixture tracking destruction.

Natively, this bulb operates at an inductive baseline regulating a continuous **operating arc voltage of 100V AC with a running current draw of 4.70 Amperes**. Following any sudden utility drops, a standard 10–15 minute hot restrike cool-down interval must pass to allow internal gas temperatures to normalize before the igniter can re-strike the arc safely.

Detailed Product Specifications

• Brand Name: Sylvania (OSRAM Sylvania Product Portfolio / Ledvance Corporate Group)
• Product Series Line: Lumalux Plus® ECOLOGIC® Non-Cycling High Pressure Sodium Series
• Sylvania Factory Product Order Code SKU: 67312
• Manufacturer Description Model Nomenclature: LU400/PLUS/ECO
• UPC Barcode Number (GTIN-12): 046135673122
• Core Technology Class: High-Intensity Discharge (HID) — High Pressure Sodium Ceramic Arc Tube
• Starting Method Classification: External Igniter Pulse-Start (Requires 4 kV pulse rated mogul socket)
• Primary Control Requirement: 400W High Pressure Sodium Ballast conforming to ANSI S51/O Protocols
• Operational Power Draw: 400 Watts
• Nominal Arc Operating Voltage: 100V AC (Sustaining operating voltage across ceramic gap)
• Continuous Operating Amperage Draw: 4.70 Amperes continuous line current load
• Required Cold Ignition Pulse Threshold: 4.0 Kilovolts Minimum Strike (4000V Pulse)
• Initial Luminous Brightness: 50,000 Lumens (Post standard 100-hour laboratory seasoning burn)
• Mean Luminous Lifecycle Output: 45,000 Lumens (Elite 90% Lumen Maintenance Factor across full life)
• Color Temperature Configuration: 2100K Warm Amber (Clear Outer Glass Jacket Visual Finish)
• Color Rendering Index (CRI): ~22 Ra
• Base Type Configuration: E39 Mogul Screw Base (Domestic heavy-duty solid brass threading / 250°C Rated)
• Bulb Shape Enclosure Class: ET23.5 (Tubular Elliptical — Hard Borosilicate Glass Envelope)
• Maximum Overall Length (MOL): 9.75" Inches (247.7mm actual body face-to-tip length)
• Nominal Bulb Profile Diameter: 2.94" Inches (74.6mm maximum outer glass casing width)
• Light Center Length (LCL Dimension): 5.75" Inches (146.0mm precision optical focal centerline)
• Rated Average Service Lifespan (50% Survival): 40,000 Hours (Based on standard 10-hour industrial cycling shifts)
• Statistical Survival Rate at 24,000 Hours: 85% Superior Field Retention Performance
• End-of-Life Behavior Status: Non-Cycling Instant Lockout (Fails open to protect internal fixture igniters)
• Chassis Burn Position Limit: Universal — Operates reliably at any horizontal, vertical, or tilted angle
• Fixture Safety Rating: Open or Enclosed Luminaires Approved (ANSI /O structural containment marker)

Lumalux Plus® vs. Standard HPS — Core Performance Matrix

Operation, Safety & Mounting Compliance

Low-Frequency Magnetic Line Damping and Thermal Transients

This non-cycling tube interfaces with standard core-and-coil magnetic ballast assemblies matching ANSI S51 engineering lines. Upon circuit engagement, an initial 3 to 5-minute warm-up phase is required to fully vaporize internal gas additives and transition the light path into its peak 50,000 lumen intensity block. The internal ceramic arc tube is structurally engineered to manage thermal expansion stresses, protecting the borosilicate glass shell and securing stable power lines across the full lifecycle of the bulb.

ECOLOGIC® Heavy-Metal Mitigation and Safe Recycling Controls

Sylvania ECOLOGIC® standards certify that this lamp contains 90% less mercury than legacy 400W high pressure sodium designs, packing an ultra-low heavy metal volume passing the strict Federal Toxic Characteristic Leaching Procedure (TCLP) test markers under NEMA guidelines. However, as an HID component, spent lamps contain vaporized sodium-mercury amalgams and must be safely processed through regional certified commercial electronic waste repositories during large-scale facility relamping sweeps rather than discarded into municipal solid land fills.

Commercial Equipment Industry Cross-References

This premium 400W E39 non-cycling HPS bulb serves as a direct drop-in replacement or alternative for the following lines:

• GE Lighting alternative: LU400/ECO ConstantColor Non-Cycling Sodium Line / Trade Catalog Part 45679
• Philips Lighting Match: Ceramalux C400S51/ALTO Long Life Series / USA Catalog Product Code 304444
• Venture Lighting Reference: HPS 400W/U/ED23.5 High Performance Pulse-Start Equivalent

Bulk Commercial Lighting Supply & Project Support

ADL Supply delivers commercial-volume logistical fulfillment, tiered commercial contractor discounting strategies, and full pallet project quoting options to electrical accounts across the United States.

For formal wholesale inquiries, volume pricing modifications, or manufacturer spec sheet documentation, reach our commercial branch directly at 1-800-235-3489. We are your commercial supply partners as an authorized wholesale Lighting Distributor In Doral, Florida.