Philips 24514-2 MSD 250

The Philips Broadway MSD 250/2 (24514-2) Lamp is a commercial-grade, high-intensity short-arc medium source discharge (MSD) daylight bulb engineered exclusively for professional entertainment automated moving heads, theatrical scanners, stage ellipsoidal profile spots, studio systems, and architectural fiber-optic light engines. Delivering a brilliant 18,000 initial lumens of crisp 6700K daylight illumination at an efficient 72 lm/W luminous efficacy, this premium single-ended module features a high-density tri-phosphor gas envelope coating to secure a color rendering index of CRI 70. Outfitted with precision GY9.5 bi-pin bases and a compact 108mm chassis footprint, it provides an extended 3,000-hour rated average service life with universal burning position flexibility across any horizontal or vertical mounting orientation.

ADL Supply Expert Application & Replacement Guide

The Philips Broadway MSD 250/2 short-arc lamp is an established theatrical stage maintenance standard specified heavily by entertainment lighting technicians, fixture service teams, and architectural system integrators for automated moving head spots, color scanners, followspots, museum profile projectors, and high-intensity fiber-optic light engine couplers. Featuring an extremely tight arc discharge gap, it projects a concentrated, raw beam of daylight illumination that maintains stable spectral distributions across long optical tracks, allowing production crews to secure exceptional visual contrast and beam definition throughout the life of the lamp.

Critical High-Voltage Igniter Requirements and Magnetic/Electronic Circuit Boundaries: Theater staging crews executing routine fixture upkeep must analyze equipment ballast data parameters closely prior to checkout: this specialized MSD short-arc capsule functions strictly when driven by a dedicated electronic or magnetic control ballast rated specifically for MSD/MSR 250W discharge platforms. While the bulb settles into a lower 90V AC running voltage once ionized, striking the cold gas column requires an intense 2.5 kV to 4.5 kV (2,500V to 4,500V) high-voltage ignition pulse from an approved external igniter.

Attempting to run this medium source discharge bulb on standard domestic commercial metal halide ballasts (such as CWA core-and-coil, pulse-start, or probe-start reactor networks) will fail to generate the necessary starting spark or current regulation, leading to immediate non-ignition or terminal component failure. Furthermore, following any abrupt power dropouts, a complete hot restrike cool-down interval must be strictly observed. Attempting to re-strike the arc before internal quartz envelope pressures normalize will cause non-ignition or accelerate cathode degradation.

Detailed Product Specifications

• Brand Name: Philips Lighting (Signify Entertainment Broadway Division)
• Product Series Line: Broadway MSD Medium Source Short-Arc Discharge Series
• Philips Wholesaler Factory Product Order Code SKU: 24514-2
• Full Manufacturer Catalog Description Model: MSD 250/2 GY9.5
• UPC Barcode Number (GTIN-12): 046677245146
• EAN-13 Logistical Identification Number: 8727900915679
• Core Technology Class: High-Intensity Discharge (HID) — Medium Source Short-Arc Discharge Capsule
• Primary Control Requirement: 250W MSD/MSR Dedicated Electronic or Magnetic Ballast + External Igniter
• Required Ballast Open Circuit Voltage (OCV Baseline): 207V AC Minimum sustaining tension
• Required Cold Ignition Pulse Threshold: 2.5 Kilovolts Minimum to 4.5 Kilovolts Maximum (2500V–4500V Pulse)
• Operational Lamp Power Draw: 250 Watts
• Nominal Arc Operating Voltage: 90V AC (Post-ignition stabilization voltage across gas column)
• Continuous Operating Amperage Draw: 3.0 Amperes continuous line current load
• Initial Luminous Brightness: 18,000 Lumens (Post standard 100-hour laboratory seasoning burn)
• Luminous Efficacy Ratio: 72 Lumens per Watt (LPW)
• Color Temperature Configuration: 6700K Daylight Spectrum (Clear Quartz Glass Finish)
• Color Rendering Index (CRI): 70 Ra
• Base Type Configuration: GY9.5 Bi-Pin Base (Premium ceramic insulated terminal plug)
• Maximum Overall Length (MOL): 108mm (4.25" Inches total footprint size pin tip to envelope apex)
• Nominal Tube Profile Diameter: 23mm (0.91" Inches actual outer bulb width)
• Electrode Arc Gap Distance: 5.0mm actual discharge center gap width
• Rated Average Service Lifespan: 3,000 Hours (Driven by calibrated electronic control gear)
• Chassis Burn Position Limit: Universal — Operates reliably at any horizontal, vertical, or tilted stage angle

Operation, Safety & Mounting Compliance

High-Frequency Electronic Signal Transformation

When retrofitted onto modern high-efficiency electronic entertainment ballasts, this lamp processes power over precise low-frequency square waves, completely preventing internal acoustic arc resonance and visual plasma shifting loops typical under old magnetic line signals. This advanced electronic stabilization maintains color-point integrity across your entire moving-head tracking row, ensuring adjacent fixtures project matched visual depth without color drift.

Mercury Content Dosing and Safe Bulk Recycling Protocols

This short-arc high-intensity capsule utilizes a highly concentrated chemical vapor volume of heavy-metal mercury to activate its hyper-bright discharge illumination track. While structurally shielded to endure extreme physical moving acceleration and intense internal atmospheres, it remains a hazardous component at end-of-life cycles. National environmental safety laws mandate processing spent modules through certified commercial e-waste repository centers during staging teardown sweeps rather than discharging them into municipal solid landfills or common trash streams.

Commercial Equipment Industry Cross-References

This premium 250W GY9.5 short-arc lamp serves as a direct drop-in replacement or electrical equivalent for the following lines:

• Sylvania Alternative Match: HSD 250W/80 4ARXS / Entertainment Moving Head Series / SKU 54243
• GE Lighting Alternative: CSI 250W GY9.5 / Medium Source Discharge Entertainment Platform
• Ushio Reference Match: MSD 250 GY9.5 / Product Catalog Code 5000282

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.