Satco BA15D 120V 250W S3123 JD DC Bayonet

The Satco S3123 250Q/CL/DC Lamp is a commercial-grade, line-voltage JD-type tungsten halogen capsule engineered for high-intensity display showcases, retail accent track heads, museum exhibition highlighting, and specialized medical/dental optical equipment. Operating at 250 watts directly over a standard 120V line circuit, this high-performance clear quartz bulb projects 4,200 initial lumens of comfortable 2900K warm white illumination. Outfitted with an industry-standard BA15d double-contact bayonet base and a heavy-duty CC-8 axial filament core, it provides a flawless 100 CRI color index profile over a reliable 2,000-hour rated average service life.

ADL Supply Expert Application & Replacement Guide

The Satco S3123 line-voltage halogen capsule is a heavy-duty facility maintenance standard specified heavily by retail property coordinators, electrical contractors, and specialized laboratory equipment engineers. This single-ended JD series globe is engineered explicitly to slide into high-lumen display showcases, professional theater borders, clinical diagnostic exam lamps, high-contrast inspection systems, and architectural pendant tracks requiring an ultra-compact, high-wattage filament source to render critical details with absolute full-spectrum visual fidelity (100 CRI).

Critical Thermal Ventilation and Bayonet Base Indexing Safety: Because this unshielded quartz capsule drives a continuous **2.08 Amp current load through a highly compressed T4 body profile**, it generates immense localized thermal energy within seconds of ignition. Maintenance teams must verify that host fixtures are certified to manage 250W halogen thermal footprints. Ensure integrated safety lens shields and housing ventilation slots remain clear of dust build-ups; trapped heat loops will rapidly brittle internal socket lead wires and bake lampholder spring contact channels.

Furthermore, installers must carefully check base terminals before twisting a replacement into place: the BA15d features a 15mm wide metal collar sleeve with dual flat contact pads on the bottom disk and parallel indexing tabs on the side. Do not attempt to force this line-voltage capsule into single-contact sockets (BA15s class) or offset-pin automotive terminals (BAY15d class), as doing so will cause terminal arcing, circuit line blowouts, or physical fracturing of the quartz base seal.

Detailed Product Specifications

• Brand: Satco Products Inc.
• Product Series Line: Line-Voltage Single-Ended JD Halogen Capsules
• Satco Factory Order Code SKU: S3123
• Manufacturer Description Nomenclature: 250Q/CL/DC (250W T4 Direct Line Bayonet)
• UPC Barcode Number (GTIN-12): 045923031236
• Core Technology Class: Tungsten-Halogen Capsule (JD Reflector-Less Class)
• Operational Wattage: 250 Watts
• Nominal Input Voltage Requirement: 120 Volts Line Voltage (Direct Mains)
• Continuous Operating Amperage Draw: 2.08 Amperes
• Initial Luminous Flux Output: 4,200 Lumens
• Luminous Efficacy Ratio: 16.8 Lumens per Watt (LPW)
• Color Temperature Configuration: 2900K Warm White Spectrum
• Color Rendering Index (CRI): 100 Ra (Absolute Light Quality Representation)
• Tungsten Filament Core Structure: CC-8 Precision Axial Alignment
• Glass Bulb Profile Envelope: Clear T4 Compact Glass Shape
• Base Type Configuration: BA15d Double-Contact Bayonet (15mm Sleeve Width)
• Maximum Overall Length (MOL): 2.84" Inches (72.1mm actual)
• Bulb Nominal Diameter (DIA): 0.50" Inches (12.7mm actual outer capsule width)
• Rated Average Lifespan: 2,000 Hours (Constant Voltage Scale)
• Chassis Burn Position Limit: Universal — Operates reliably at any burning angle
• Environmental & Safety Ratings: RoHS Compliant, Damp Location Certified

Operation, Safety & Mounting Compliance

High-Wattage Filament Loading and Dimming Control Tracks

This line-voltage halogen bulb provides instant-on ignition with zero warm-up delays and is natively 100% dimmable across traditional analog dimming networks. Lowering current paths shifts the axial tungsten coil loop into a cozy amber spectral temperature. Because this lamp handles an intensive thermal power draw, ensure all socket wiring pathways utilize heavy duty, heat-resistant silicone or high-temperature fiberglass braided sleeving to prevent internal conductor lines from baking or cracking over extended operations.

Quartz Glass Preservation and Contamination Prevention

Never handle the clear quartz glass envelope body wrapper with bare fingers during installation sweeps. Human skin cells deposit microscopic alkaline body oils that fuse chemically to the quartz wall structure during rapid heating cycles. This contamination blocks essential heat dissipation, creating intense localized hot spots that trigger accelerated envelope devitrification, early structural clouding, micro-fracturing, and premature blowout under internal high-pressures. Installers must execute re-lamping sweeps using clean cotton tech gloves, a lint-free microfiber cloth, or its protective cardboard package sleeve. Clean meticulously with isopropyl alcohol if accidental baseline skin tracking takes place. Turn off circuit breakers and allow a 20-minute cooling intermission before performing maintenance loops to prevent contact skin burns.

Commercial Equipment Industry Cross-References

• Osram Sylvania Alternative: 58690 / 250Q/CL/DC (JD 250W 120V BA15d)
• Philips Lighting Match: 23261-1 / Halogen High-Output 250W Double-Contact
• Ushio Reference: 1000132 / Euroquartz 120V 250W Clear BA15d

Bulk Commercial Lighting Supply & Project Support

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For specialized contractor pricing tiers, job-site pallet deliveries, or comprehensive submittal documentation, contact our support team directly at 1-800-235-3489. We are your commercial supply partners as an authorized wholesale Lighting Distributor In Doral, Florida.