GE 43701 Q250DC-ETB – 250W/120V Quartzline Halogen SSTV Lamp | ANSI ETB | 2950K | 4,850 Lumens | BA15d Base | T4

4,850 lumens at 2950K with CRI 100 – a 250W/120V Quartzline halogen SSTV lamp with BA15d double contact bayonet base, T4 bulb, and 2,000-hour long life for stage, studio, and theater lighting.

Quick Specs

• Brand: GE (General Electric)
• SKU / Order Code: GHLB43701
• Manufacturer Part #: 43701
• ANSI Code: ETB
• Lamp Type: Quartzline Halogen (SSTV)
• Wattage: 250W
• Voltage: 120V
• Base Type: BA15d (Double Contact Bayonet)
• Bulb Type: T4
• Bulb Finish: Clear / Warm White
• Color Temperature: 2950K
• CRI: 100
• Initial Lumens: 4,850 lm
• Rated Average Life: 2,000 hours
• Filament Type: CC-8
• Maximum Overall Length (MOL): 3.0 in (76.2 mm)
• Bulb Diameter: 0.5 in (12.7 mm)
• UPC: 043168437011

Product Overview

The GE 43701 Q250DC-ETB is a 250-watt, 120-volt Quartzline halogen SSTV lamp delivering 4,850 initial lumens at 2950K with CRI 100. It features a BA15d double contact bayonet base and a T4 bulb, making it suitable for stage, studio, and theater fixtures requiring a medium-wattage halogen source with warm color temperature and extended life.

The CC-8 filament provides stable, intense light output, while the 2,000-hour rated life significantly reduces maintenance frequency compared to shorter-life stage lamps (typically 200-500 hours). This makes the ETB lamp ideal for installed fixtures where relamping access is difficult or where long service intervals are desired. The compact T4 envelope (3.0-inch MOL, 0.5-inch diameter) fits a wide range of professional luminaires.

Why Choose This Product

• 4,850 lumens – high output for 250W: Excellent brightness for stage key lighting, studio fill, and theatrical wash applications.
• ANSI ETB – industry-standard replacement: The ETB code ensures consistent electrical and photometric performance for compatible fixtures.
• 2950K warm white color temperature: Provides a natural, warm tungsten ambiance suitable for theatrical and studio environments.
• CRI 100 – perfect color rendering: Full-spectrum halogen light ensures accurate color reproduction for film, video, and live events.
• 2,000-hour long life – low maintenance: Up to 4-10 times longer than standard stage lamps, dramatically reducing relamping costs and downtime.
• BA15d double contact bayonet base: Secure, twist-lock base commonly found in professional stage and studio fixtures.

Technical Specifications

Dimensions

Applications

• Stage and theater lighting – ellipsoidal spotlights, Fresnel fixtures, border lights
• Studio and entertainment production – key, fill, and backlighting for television and video
• Architectural and display lighting – retail showcases, museum exhibits, accent lighting
• SSTV (Stage, Studio & Theater) luminaires requiring BA15d base halogen lamps

Compatibility & Replacement

Fixture type: This ANSI ETB lamp fits professional stage and studio fixtures designed for a BA15d double contact bayonet base and 250W/120V halogen lamps. Common in ellipsoidal spotlights, Fresnel fixtures, and border lights from manufacturers such as Altman, Strand, and Kliegl.

Base: BA15d – double contact bayonet base with two side pins. To install, push in and twist clockwise. Verify your fixture uses BA15d lampholders (not single contact or screw bases).

Ballast: No ballast required – operates directly on 120V mains power.

Before ordering, confirm:

• ANSI code – ETB: Verify your fixture specifies ANSI ETB or equivalent 250W/120V BA15d halogen lamp.
• Voltage – 120V: Verify fixture and supply circuit are 120V.
• Base type – BA15d: Physically confirm your fixture uses double contact bayonet lampholders (two contacts on bottom, two side pins).
• Physical dimensions: Verify your fixture accepts a T4 bulb with 3.0-inch overall length and 0.5-inch diameter.
• Fixture wattage rating: Ensure fixture is rated for at least 250W.
• Burn position: Consult your fixture documentation for approved lamp orientation (not specified by manufacturer for this lamp).

Ordering Information

• Brand: GE (General Electric)
• Manufacturer Part #: 43701
• SKU / Order Code: GHLB43701
• ANSI Code: ETB
• UPC: 043168437011
• Lamp Type: 250W/120V Quartzline Halogen – BA15d Base, T4, 2950K, 4,850 lm, 2,000 hr life
• Case quantities and bulk pricing available – contact ADL Supply for volume orders.

Compliance & Certifications

• Verify UL / ETL listing status with manufacturer specification sheet.
• Verify RoHS compliance status with manufacturer specification sheet.
• Verify FDA radiation performance compliance with manufacturer specification sheet.
• Verify Prop 65 warning requirements with manufacturer specification sheet.

ADL Supply recommends confirming all applicable compliance data with the GE official product data sheet (ANSI ETB / Part # 43701) prior to specification or installation.

Safety & Handling Notes

• High pressure warning – face shield required: Quartzline lamps operate under high internal pressure. Always wear a face shield and protective gloves during handling and installation. Lamp burst can cause serious injury.
• No bare hands: Never touch the quartz envelope with bare skin. Oils cause hot spots leading to premature failure or lamp burst. Use clean gloves or a lint-free cloth.
• Do not exceed rated voltage: Operating above 120V dramatically shortens lamp life. Verify supply voltage before installing.
• Burn position: Observe the rated burn position as specified by your fixture manufacturer (not provided – consult fixture documentation).
• Extreme heat and UV output: Use only in approved enclosed luminaires with appropriate UV filtering.
• Allow complete cool-down before handling: Allow lamp to cool completely before relamping. Do not touch immediately after switching off.
• Follow your fixture manufacturer's service documentation for lamp replacement procedures.