GE 37695 DZE 24V 150w Halogen Bulb

The GE Quartzline FDS/DZE is a precision 150W 24V halogen T4 projection lamp engineered for microscope illuminators, microfilm readers, professional studio optical equipment, and specialty imaging systems. Delivering 4,000 initial lumens of 3450K output at 100 CRI through a GZ9.5 2-pin prefocus base with a 0.25 × 0.15-inch source size, this ANSI FDS/DZE-coded Quartzline lamp provides a 100-hour calibrated service life with horizontal or base-down burn position for precision optical instrument applications.

ADL Supply Expert Application & Replacement Guide

The GE Quartzline FDS/DZE is primarily used by scientific instrument service technicians, biomedical equipment engineers, and AV equipment maintenance teams as the replacement lamp in research microscope illuminators, microfilm and microfiche reader systems, optical bench projection equipment, and professional studio imaging instruments where the ANSI FDS or DZE code is the equipment specification. This lamp carries dual ANSI codes — FDS and DZE — both designating the 150W 24V GZ9.5 prefocus halogen platform; fixtures specifying either code will accept this lamp. The GZ9.5 2-pin prefocus base uses 9.5mm pin spacing in a prefocus keyed configuration that mechanically registers the filament at a precise focal point in the fixture's optical assembly — correct seating until the prefocus collar locks is critical for optical performance. The source size of 0.25 × 0.15 inches (6.35 × 3.81mm) is the apparent filament dimension as seen from the optical axis — this parameter directly determines how the lamp's light is collected, collimated, or focused by the instrument's condensing optics. Substituting a lamp with a different source size will change the instrument's illuminated field diameter and uniformity. This lamp operates on a regulated 24V DC or AC supply from the instrument's internal power supply — it is not compatible with standard 12V low-voltage transformers or 120V line voltage.

Before You Order

Detailed Product Specifications

• Brand: GE Lighting
• Product Line Series: Quartzline Halogen T4 Projection — Precision Optical
• ANSI Code: FDS / DZE (both codes accepted by this lamp)
• UPC Barcode: 043168376952
• Core Technology: Tungsten-Halogen T4 Clear — GZ9.5 Prefocus
• Power Supply Requirement: Regulated 24V supply — standard 12V transformers and 120V not compatible
• Wattage: 150W
• Operating Voltage: 24V
• Initial Lumens: 4,000 lm
• Color Temperature (CCT): 3450K Warm White
• Color Rendering Index (CRI): 100 Ra
• Base Type Configuration: GZ9.5 2-Pin Prefocus (9.5mm pin spacing)
• Bulb Shape: T4 Clear
• Maximum Overall Length (MOL): 2.68 inches (68.1mm)
• Bulb Diameter: 0.5 inches (12.7mm)
• Source Size: 0.25 × 0.15 inches (6.35 × 3.81mm) — filament apparent dimensions at optical axis
• Rated Average Lifespan: 100 Hours (Calibrated)
• Burn Position: Horizontal ±15° or Base Down — base-up vertical not approved
• Country of Assembly: Mexico
• Mercury Content: None — standard e-waste disposal applies

Operation, Safety & Mounting Compliance

GZ9.5 Prefocus Alignment, 24V Supply & Source Size Precision

The GZ9.5 2-pin prefocus base registers the lamp filament at a fixed focal position relative to the fixture's optical axis — the prefocus collar must be fully seated and locked in the fixture socket to ensure the filament is at the designed focal point. Misalignment of even a fraction of a millimeter will produce uneven illumination, reduced condenser efficiency, or loss of focus in the instrument's image plane. The 24V supply voltage is a regulated specialty level — not standard 12V. The instrument's internal regulated supply must output exactly 24V under operating load. The burn position restriction to horizontal ±15° or base-down prevents filament sag at the 150W operating temperature that would otherwise displace the apparent source position from the optical axis, degrading image quality in precision instruments.

Quartz Handling & Disposal

Never handle the quartz glass T4 envelope with bare skin — skin oils create localized hot spots that accelerate premature envelope failure. Always relamp using clean cotton gloves or a lint-free cloth. Allow the instrument to cool completely before lamp access. Use only in approved enclosed optical fixture assemblies. This lamp contains no mercury; standard electronic waste disposal applies.

Industry Cross-Reference Data

• Osram Sylvania: FDS 150W 24V GZ9.5 / DZE 150W 24V GZ9.5 (equivalent ANSI-coded precision projection halogen)
• Philips: FDS/DZE 150W 24V GZ9.5 (equivalent dual-code 24V T4 prefocus projection lamp)
• Ushio: FDS/DZE 150W 24V GZ9.5 (equivalent Quartzline precision optical platform)
• Legacy Cross-Reference: Direct replacement for ANSI FDS/DZE-coded 150W 24V GZ9.5 prefocus halogen lamp positions in microscope illuminators, microfilm readers, optical bench equipment, and professional studio imaging instrument hardware

Bulk Commercial Lighting Supply & Project Support

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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.