Sylvania F48T12/CW/HO T12 High Output Fluorescent Lamp

Sylvania F48T12/CW/HO T12 High Output Fluorescent Lamp

The Sylvania F48T12/CW/HO family covers T12 High Output fluorescent lamps built for demanding commercial and industrial lighting applications where higher light output is required from a standard T12 form factor, available across model options 20929 and 25146 to support ongoing maintenance of existing High Output T12 fixture systems. Lamps in this family are rated at 60-Watt and deliver 4050 lumens with a 60 CRI and a 4200K color temperature, producing bright, cool-white illumination suited to warehouses, garages, workshops, and other large-format interior spaces. Each lamp uses a Recessed Double Contact base, matching it to fixtures designed for High Output T12 sockets, and a 48-inch length that fits standard 4-foot fluorescent fixture bodies. As a T12 High Output design, these lamps draw more power than a standard-output T12 lamp of the same length in exchange for significantly higher lumen output, making the family a practical solution when existing HO fixtures need consistent, code-compliant replacement lamps rather than a full retrofit. Facility managers and electrical contractors specify this family when maintaining legacy T12 HO lighting systems that are not yet ready for LED conversion, ensuring continuity of light levels and color rendering across a lit space, with an average rated life of 12000 hours per lamp.

Key Features

• Lamp Length: 48-Inch overall length for direct fit in standard 4-foot High Output fluorescent fixtures.
• Wattage: 60-Watt High Output rating delivers greater brightness than standard T12 lamps of the same length.
• Light Output: 4050 initial lumens for strong, consistent illumination in large interior spaces.
• Color Temperature: 4200K cool-white color rendering suited to task and general area lighting.
• Color Rendering: 60 CRI, typical of standard-grade T12 High Output fluorescent lamps.
• Base Type: Recessed Double Contact base for compatibility with High Output T12 sockets and fixtures.
• Lamp Type: T12 High Output fluorescent construction designed for HO ballast systems.
• Rated Life: 12000-hour average rated life for dependable long-term service.

Technical Specifications

• Product Type: Fluorescent Lamp
• Product Wattage: 60W
• CRI: 60
• Product Subgroup: Bulbs
• Product Diameter: 40.46 millimeters
• Average Rated Life: 12000 hours
• Bulb Type: T12
• Color Rendering Index: 60 color rendering index

Typical Applications

• Warehouse and Industrial High-Bay Fixtures
• Commercial Garages and Maintenance Facilities
• Legacy T12 High Output Fixture Retrofits and Maintenance
• General Area and Task Lighting in Large Interior Spaces
• Replacement Lamp Stock for Existing HO Fluorescent Systems

Why Sylvania?

Sylvania has long supplied dependable fluorescent lighting for commercial and industrial facilities, and the F48T12/CW/HO family continues that standard with High Output lamps engineered to match the performance expectations of existing HO fixture installations. With a defined 4050-lumen output, 4200K color temperature, 60 CRI, Recessed Double Contact base, and a 12000-hour rated life, this family gives facility teams a reliable, drop-in replacement option across model numbers 20929 and 25146 for maintaining consistent light levels without altering fixture infrastructure.