Philips 38450-3 PL-T 42W/827/4P ALTO - 42W Triple Tube Compact Fluorescent Lamp, 2700K Warm White, GX24q-4 4-Pin Base

The Philips PL-T 42W/827/4P ALTO (#38450-3, CFTR42W/GX24q/827) is a high-output, energy-efficient triple-tube compact fluorescent lamp featuring ALTO low-mercury technology. It delivers warm 2700K incandescent-like light with 3,200 lumens output and a rated life of 12,000–20,000 hours (depending on ballast and operating conditions). Designed for electronic ballasts, this CFL provides inviting, cozy illumination with excellent color quality, reduced environmental impact, and long-term reliability. Sold in cases of 12.

Key Specifications

• Wattage: 42W
• Color Temperature: 2700K (Warm White / Incandescent White)
• Base Type: GX24q-4 (4-Pin Plug-In)
• Initial Lumens: 3,200 lm
• CRI (Color Rendering Index): 82
• Maximum Overall Length (MOL): 6-3/8 inches (162 mm)
• Rated Average Life: 12,000–20,000 hours (typically 12,000 hrs standard; up to 20,000 with optimal electronic ballast and longer on-cycles)
• Order Code: #38450-3 (PL-T 42W/827/4P/ALTO or CFTR42W/GX24q/827)
• Technology: ALTO® Low Mercury (~1.4 mg per lamp, EPA TCLP compliant)
• Packaging: Sold 12 per case
• Bulb Shape: Triple Tube (PL-T / 3U)

Features & Benefits

• ALTO® Technology: Reduced mercury content for environmentally responsible use and easier disposal.
• Triple-Tube Design: Compact 3U shape for high light output and uniform distribution in space-constrained fixtures.
• Energy Efficient: Up to 75–80% less energy than equivalent incandescent lamps.
• Optimized for Electronic Ballasts: Flicker-free instant start, improved system efficacy, and compatibility with dimming ballasts (when using compatible systems).
• Excellent Color Quality: CRI 82 for natural, inviting warm white light with good rendering.
• Long Life & Low Maintenance: Reduces replacement frequency and operating costs in commercial settings.

Recommended Applications

• Recessed downlights and troffers in offices, retail, and hospitality spaces.
• Wall sconces, ceiling fixtures, and ambient general lighting.
• Commercial corridors, lobbies, and task areas needing warm, welcoming illumination.
• Residential accent and general indoor lighting.
• Energy-efficient retrofits for existing 4-pin CFL fixtures.

Important Information

• Requires compatible electronic ballast for optimal performance and extended life.
• Contains a small amount of mercury — proper recycling/disposal required (recycle where available).
• Standard versions not dimmable (check for dimming-compatible electronic ballasts if needed).
• CE certified, UL listed, and meets UL 935 safety standards.
• ENERGY STAR qualified (model-dependent) and Title 20 compliant.

High-performance CFL for cozy, warm white lighting in professional and residential environments—delivers strong output with eco-friendly design. These legacy CFLs are increasingly replaced by LED alternatives for longer life (25,000+ hours), no mercury, and superior energy savings.