Halco ProLume 26W GU24 Spiral T2 CFL Bulb - 3500K Cool White, 1750 Lumens, 10,000-Hour Life

The Halco ProLume 26W GU24 Spiral T2 Compact Fluorescent is a high-output, self-ballasted CFL designed for twist-lock GU24 sockets to meet energy code requirements. It produces 1750 lumens of bright 3500K cool white light—equivalent to a 100W incandescent—with good color rendering (CRI 82) and a 10,000-hour rated life. Featuring electronic instant-start ballast, tri-phosphor coating, nickel-plated brass base, and compact spiral design, this non-dimmable bulb delivers up to 80% energy savings, excellent lumen distribution, and reliable performance in enclosed fixtures. Sold in cases of 10—perfect for ceiling fixtures, downlighting, wall sconces, table lamps, and general residential/commercial lighting where high brightness and compliance are key.

Key Specifications

• Wattage: 26W CFL (100W Incandescent Equivalent)
• Base Type: GU24 Twist-Lock (4-Pin)
• Initial Lumens: 1750 lm
• Color Temperature: 3500K Cool White / Neutral White
• CRI (Color Rendering Index): 82
• Rated Average Life: 10,000 hours
• Maximum Overall Length (MOL): 5.20 inches
• Maximum Outer Diameter (MOD): 2.13 inches
• Voltage: 120V, 60Hz
• Minimum Starting Temperature: 5°F (-15°C)
• Packaging: Sold 10 per case

Energy Efficiency & Performance

• Up to 80% Energy Savings: Compared to equivalent incandescent lamps
• Tri-Phosphor Coating: Enhances lumen efficacy and color rendering (CRI 82)
• Electronic Instant Start Ballast: Fast, flicker-free starting
• Amalgam Technology: Maintains stable light output across temperature ranges
• Compact Spiral T2 Design: Maximum light distribution in small fixtures
• UL Approved: For use in totally enclosed fixtures (up to 90°C max ballast case temp)

Technical Features

• Nickel-Plated Brass Base: Corrosion-resistant for reliable connection
• End-of-Life Protection: Prevents overheating and cycling at end of life
• Low-Temperature Start: Operates reliably down to 5°F
• Broad Assortment: Available in 5–26W and 2700K–5000K; GU24 in 13–26W

Recommended Applications

• Ceiling fixtures and recessed downlighting
• Table lamps and portable fixtures
• Decorative wall sconces and vanity lights
• General residential and commercial indoor ambient lighting
• Energy code-compliant retrofits in GU24 sockets

Important Information

• Non-Dimmable: Do not use with dimmer switches
• Contains Mercury: Dispose of properly through recycling (do not throw in trash)
• Fixture Compatibility: Use in GU24 sockets; suitable for open or enclosed fixtures
• UL Listed & RoHS Compliant: Meets safety and environmental standards

High-output, energy-saving GU24 CFL for bright cool white lighting—delivers strong performance, long life, and compliance in decorative and general fixtures. These CFLs are legacy products; LED GU24 equivalents provide 15,000–25,000+ hour life, no mercury, instant-on, often dimmable options, and superior efficiency with similar or better brightness (e.g., 12–15W LED replacements).