GE 43709 Q500DC 500W 120V Quartzline SSTV Halogen Lamp – BA15d Base | 2950K | 10,100 Lumens | 2000 hr Life

10,100 lumens at 2950K with CRI 100 and 2000-hour long life – a 500W/120V Quartzline halogen SSTV lamp with BA15d double contact bayonet base, T4 bulb, and CC-8 filament for stage, studio, and theater lighting.

Quick Specs

• Brand: GE Lighting
• Series: Quartzline
• Model: Q500DC
• Product Code: 43709
• UPC: 043168437097
• Lamp Type: SSTV Halogen (Stage, Studio & Theater)
• Wattage: 500 W
• Voltage: 120 V
• Base Type: BA15d (Double Contact Bayonet)
• Bulb Shape: T4
• Bulb Finish: Warm White / Clear
• Color Temperature: 2950K
• CRI: 100
• Initial Lumens: 10,100 lm
• Rated Average Life: 2,000 hours
• Filament Type: CC-8
• Maximum Overall Length (MOL): 3.4 in (86.4 mm)
• Bulb Diameter: 0.5 in (12.7 mm)
• Burn Position: Verify with manufacturer specification sheet

Product Overview

The GE 43709 Q500DC Quartzline Halogen Lamp is a professional 500-watt, 120-volt SSTV lamp delivering 10,100 initial lumens at 2950K with CRI 100. It features a BA15d double contact bayonet base and a T4 bulb, making it ideal for stage, studio, and theater fixtures requiring high output, warm color temperature, and long life.

The CC-8 filament provides stable, intense light output, while the 2,000-hour rated life significantly reduces maintenance frequency compared to standard stage lamps. GE Quartzline halogen SSTV lamps are trusted worldwide for film, television, theater, and concert lighting systems.

Why Choose This Product

• 10,100 lumens – high output for 500W: Excellent brightness for ellipsoidal spotlights, Fresnel fixtures, and follow spots.
• 2,000-hour long life – low maintenance: Extended service life reduces relamping costs and downtime.
• 2950K warm white color temperature: Provides a natural tungsten ambiance ideal for theatrical and broadcast environments.
• CRI 100 – perfect color rendering: Full-spectrum halogen light ensures accurate color reproduction.
• BA15d double contact bayonet base: Secure, twist-lock base commonly found in professional stage and studio fixtures.
• GE Quartzline reliability: Trusted performance for professional entertainment applications worldwide.

Technical Specifications

Dimensions

Applications

• Stage lighting fixtures – ellipsoidal spotlights, Fresnel luminaires, border lights
• Studio and broadcast lighting – key, fill, and backlighting for television and video production
• Theater lighting systems – front-of-house and on-stage fixtures
• Professional entertainment lighting equipment – concerts, houses of worship, live events

Compatibility & Replacement

Fixture type: This GE Q500DC lamp fits professional stage and studio fixtures designed for a BA15d double contact bayonet base and 500W/120V halogen lamps. Common in ellipsoidal spotlights, Fresnel fixtures, and specialty luminaires 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. Confirm your fixture uses BA15d lampholders (not single contact or screw bases).

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

Before ordering, confirm:

• 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 3.4-inch overall length and 0.5-inch diameter.
• Fixture wattage rating: Ensure fixture is rated for at least 500W.
• Burn position: Consult your fixture documentation for approved lamp orientation (not specified by manufacturer).

Ordering Information

• Brand: GE Lighting
• Product Code: 43709
• Model: Q500DC
• UPC: 043168437097
• Lamp Type: 500W/120V Quartzline Halogen – BA15d Base, T4, 2950K, 10,100 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 (Product Code 43709 / Q500DC) prior to specification or installation.

Safety & Handling Notes

• High pressure warning – face shield required: Quartzline halogen 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.