Product Overview

Philips PL-T 32W/835/4P ALTO - 32W Triple Tube Compact Fluorescent Lamp, 3500K Natural White, GX24q-3 4-Pin Base
The Philips PL-T 32W/835/4P ALTO is a high-output, energy-efficient triple-tube compact fluorescent lamp with advanced ALTO low-mercury technology. Delivering bright 3500K natural white light and 2,400 lumens, it offers a long rated life of 12,000–20,000 hours (depending on ballast and starting cycles). Optimized for electronic ballasts, this eco-friendly CFL provides consistent performance, reduced energy consumption, and minimized environmental impact—perfect for commercial, office, retail, and institutional lighting applications.
Technical Specifications
- Wattage: 32W
- Color Temperature: 3500K (Natural White / Neutral White)
- Initial Lumens: 2,400 lm
- CRI (Color Rendering Index): 82
- Base Type: GX24q-3 (4-Pin Plug-In)
- Maximum Overall Length (MOL): 5-5/8 inches (143 mm)
- Rated Average Life: 12,000–20,000 hours (typically 12,000 hrs standard; up to 20,000 with optimal electronic ballast and 12-hour starts)
- Technology: ALTO® Low Mercury (1.4 mg mercury content)
- Bulb Shape: Triple Tube (PL-T / 3U)
- Philips Order Code: (Commonly associated with PL-T 32W/835/4P/ALTO series)
Key Benefits
- ALTO Technology: Only 1.4 mg of mercury per lamp for reduced environmental impact and easier disposal (EPA TCLP compliant).
- Extended Service Life: Up to 20,000 hours with optimal electronic ballast operation, significantly reducing relamping frequency.
- Compact & Efficient Design: 25% shorter than comparable PL-C lamps, ideal for space-constrained fixtures while maintaining high output.
- Energy Savings: Up to 75–80% less energy than equivalent incandescent lamps; high system efficacy with electronic ballasts.
- Consistent Light Quality: Excellent lumen maintenance and stable color over life for reliable performance.
Performance Features
Maintenance Advantages
- Reduced relamping frequency and labor costs
- Consistent light output throughout rated life
- Lower overall maintenance expenses in commercial settings
Environmental Benefits
- RoHS compliant
- Meets EPA mercury reduction standards
- Recyclable components and low-mercury design
Recommended Applications
- Commercial ceiling fixtures and troffers
- Office and workspace lighting systems
- Retail display and general merchandising lighting
- Educational facilities (classrooms, hallways)
- Hospitality environments (hotels, restaurants, lobbies)
- Energy-efficient retrofits in existing 4-pin CFL fixtures
Compliance & Safety
- Meets UL 935 safety standards for fluorescent lamps
- ENERGY STAR certified (model-dependent)
- Title 20 compliant (California energy regulations)
- Proper disposal recommended (recycle where available)
High-performance, sustainable CFL for bright natural white lighting in professional environments—excellent output with eco-friendly design. These legacy CFLs are increasingly replaced by LED alternatives for longer life, no mercury, and greater energy savings.