GE DRB/DRC 115/120V 1000W Projection Lamp

The GE DRB/DRC is a high-intensity 1000W 120V T45 tungsten halogen projection lamp engineered for professional projectors, studio fixtures, and specialty optical projection equipment requiring extremely high-output illumination. Delivering 28,000 initial lumens of 3200K warm white output at 100 CRI through a P28s medium prefocus flanged base with a C-13 filament, this ANSI DRB-coded lamp provides a 50-hour calibrated service life for demanding projection applications.

ADL Supply Expert Application & Replacement Guide

The GE DRB/DRC is primarily used by AV equipment technicians, studio lighting service teams, and projection equipment engineers as the replacement lamp in professional projectors, optical bench systems, and specialty studio fixtures where the ANSI DRB code is the equipment specification. This lamp operates on standard 120V line voltage — no transformer is required. The P28s medium prefocus flanged base mechanically registers the C-13 filament at a fixed focal position relative to the projector's optical axis — correct seating until the prefocus collar locks is critical for achieving the designed beam quality, illumination uniformity, and projection focus. The 50-hour calibrated service life is a precision parameter of the high-output projection halogen platform — production facilities and projection suites should track runtime hours and maintain a replacement inventory to avoid lamp failure during a live presentation or shoot. Note that the source lists both DRB and DRC ANSI codes in the product title — DRB and DRC are related but distinct ANSI codes; confirm the exact ANSI code required by your equipment before ordering. The diameter listed in the source (2.5mm) appears to be a data entry error for a T45 format lamp — confirm the envelope diameter with the GE specification sheet before verifying fixture clearance.

Before You Order

Detailed Product Specifications

• Brand: GE Lighting
• Product Line Series: Quartzline Halogen Projection
• ANSI Code: DRB (confirm DRB or DRC with equipment specification)
• Core Technology: Tungsten-Halogen T45 Projection Lamp
• Wattage: 1,000W
• Operating Voltage: 120V
• Initial Lumens: 28,000 lm
• Color Temperature (CCT): 3200K Warm White
• Color Rendering Index (CRI): 100 Ra
• Filament Type: C-13
• Base Type Configuration: P28s Medium Prefocus Flanged
• Bulb Shape: T45 Tubular
• Maximum Overall Length (MOL): 5.75 inches (146.1mm)
• Bulb Diameter: Confirm with GE specification sheet — source value appears erroneous
• Rated Average Lifespan: 50 Hours (Calibrated)
• Burn Position: Universal — Any Orientation
• Mercury Content: None — standard e-waste disposal applies

Operation, Safety & Mounting Compliance

P28s Prefocus Alignment, 1000W Circuit Requirements & Quartz Handling

The P28s medium prefocus base locks the lamp's C-13 filament at a mechanically fixed focal position relative to the projector's reflector and lens optical axis — the prefocus collar must be fully engaged in the fixture socket before powering. At 1,000W on a 120V circuit, this lamp draws approximately 8.33 amperes — confirm the fixture housing, socket, and all wiring are rated for 1,000W halogen operation at continuous load. Never handle the quartz envelope with bare skin — skin oils create localized hot spots that accelerate premature envelope failure at these operating temperatures. If accidental skin contact occurs, clean the envelope with isopropyl alcohol before installation. Allow a minimum 15-minute cool-down before any relamping procedure.

Industry Cross-Reference Data

• Osram Sylvania: DRB 1000W 120V P28s (equivalent ANSI DRB projection halogen)
• Philips: DRB/DRC 1000W 120V P28s (equivalent 1000W T45 prefocus projection lamp)
• Ushio: DRB 1000W 120V P28s (equivalent ANSI DRB projection platform)
• Legacy Cross-Reference: Direct replacement for ANSI DRB/DRC-coded 1000W 120V P28s medium prefocus T45 halogen lamp positions in professional projectors and specialty studio optical equipment

Bulk Commercial Lighting Supply & Project Support

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