Philips 39167-2 HPL575LL/115V

The Philips Broadway HPL575LL/115V (391672) 7007 Lamp is a professional-grade, high-intensity tungsten halogen stage and theater bulb engineered exclusively for Electronic Theatre Controls (ETC) Source Four® ellipsoidal profile spotlights, fresnels, wash luminaires, and specialized architectural zoom projectors. Delivering a powerful 12,360 initial lumens of warm 3000K theatrical white light, this premium single-ended capsule utilizes an advanced multi-source filament array to achieve a flawless color rendering index of 100 CRI. Outfitted with a specialized G9.5 flanged bi-pin heat sink base and an un-shrouded clear quartz glass body, it ensures exact filament positioning relative to the fixture's optical reflector to guarantee uniform field performance across an extended 2,000-hour rated average service life.

ADL Supply Expert Application & Replacement Guide

The Philips Broadway 575W HPL long-life theater lamp is an established industry entertainment baseline specified universally across television broadcast networks, concert touring stages, theatrical amphitheaters, and regional auditorium venues. Built specifically for the specialized optical geometry of Electronic Theatre Controls (ETC) Source Four® ellipsoidal reflector spotlights, this lamp utilizes an advanced compact multi-segment tungsten wire cluster. This geometric arrangement mirrors the cold-mirror reflector's focal curves, allowing the luminaire lens train to throw clean, high-intensity beams with uniform field coverage, eliminating the dark centers or visual hot-spots common when using standard filament replacements.

Critical 115V Dimmer Circuit Voltage Regulations and Heat Sink Socket Seating: Gaffers, lighting designers, and theater technicians executing venue-wide re-lamping loops must observe specific system parameters prior to check out: this HPL module is engineered for regulated 115V theatrical dimmer tracks, not standard domestic 120V mainline circuits. Stage dimmer banks natively modulate output grids to provide a steady 115 Volts at full intensity. Operating this bulb directly on unregulated 120V outlets will induce severe filament stress, cutting your operating lifespan from its 2,000-hour long-life target down to approximately 750 hours.

Furthermore, the robust G9.5 base incorporates integral cast-aluminum heat sink fins. Installers must slide the base firmly into the fixture's rear lamp burner housing until the collar aligns flush against the contact blocks. These fins conduct extreme operational heat away from the quartz glass pinch seal, dissipating thermal load into the fixture housing. Loose seating or weak socket tension will cause the terminal pins to cross their safe **350°C thermal limit**, causing catastrophic micro-arcing that melts the fixture burner socket wire tracks.

Detailed Product Specifications

• Brand Name: Philips Lighting (Signify Corporate Division / Broadway Entertainment Portfolio)
• Product Series Line: High Performance Long-Life (HPL) Halogen Stage & Theater Series
• Philips Factory Product Order Code SKU: 391672
• Full Manufacturer Catalog Description Model: HPL 575W/115V/LL 7007LL
• UPC Barcode Number (GTIN-12): 046677391676
• EAN-13 Logistical Identification Number: 8711500185341
• Philips Global 12NC Equipment Key: 924555034428
• Core Technology Class: Thermal Incandescent — High-Temperature Tungsten Halogen Compact Multi-Filament
• Primary Control Requirement: Regulated Theatrical Dimmer Circuit (115V Full Intensity Capped Input)
• Operational Power Draw: 575 Watts
• Nominal System Operating Voltage: 115 Volts AC/DC Compatible
• Initial Luminous Brightness: 12,360 Lumens (Post standard factory seasoning burn)
• Luminous Efficacy Ratio: 21.4 Lumens per Watt (LPW)
• Color Temperature Configuration: 3000K Warm White (Clear High-Purity Quartz Glass Casing)
• Color Rendering Index (CRI): 100 Ra (Flawless Continuous Full-Spectrum Energy Distribution)
• Base Type Configuration: G9.5 Bi-Pin with Integrated Aluminum Heat Sink Fins (9.5mm prong pitch)
• Maximum Allowable Pinch Seal Temperature: 350°C (662°F Maximum Safe End-Seal Thermal Threshold)
• Bulb Shape Enclosure Code: T6 Clear Compact Enclosure Shape
• Maximum Overall Length (MOL): 104.0mm / 4.09" Inches Structural Body Height Base-to-Tip
• Nominal Bulb Envelope Diameter: 19.0mm / 0.75" Inches Maximum Outer Quartz Width
• Filament Type Geometry Class: Multi-Segment Proprietary HPL Filament Array Profile
• Rated Average Service Lifespan: 2,000 Hours (Long-Life LL variant baseline / Extends from 300-hour standard model)
• Chassis Burn Position Limit: Universal — Operates reliably at any horizontal, vertical, or tilted stage angle
• Fixture Installation Requirement: Closed / Interlocked Stage Luminaire Enclosures Only Mandatory

Operation, Safety & Mounting Compliance

High-Temperature Regenerative Halogen Halide Cycle Controls

This halogen lamp operates via an internal chemical loop where vaporized tungsten particles bond with halogen gas molecules inside the heated chamber. This compound cycles back onto the burning filament tracks, redepositing the tungsten to preserve filament mass. For this cycle to work cleanly and prevent wall-blackening, the inner envelope must continuously transcend a high temperature threshold exceeding 250°C, making proper convective venting or clean reflector alignment paths inside the source four burner housing mandatory.

Commercial Stage Equipment Cross-References

This standard 575W 115V HPL bulb serves as a direct drop-in replacement or alternative for the following lines:

• GE Lighting Alternative: HPL575LL/115V ShowBIZ Line / Product Order Code 99427
• Osram Sylvania Match: HPL 575W/115V/LL Aluline Series / Factory Order Code 54664
• ETC OEM Reference: Direct replacement for single-ended HPL long-life lamp slots inside standard Source Four fixtures

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.