Osram FO28/835XP/XL/SS/ECO3 T8 Fluorescent Lamp 28W 3500K

Product Description

The OSRAM FO28/835XP/XL/SS/ECO3 is a 28-watt T8 fluorescent lamp built for extended performance and extended life in commercial and institutional lighting systems. It delivers 2600 initial lumens at 77 degrees F with a color temperature of 3500 K and a color rendering index of 85. The lamp uses rare earth phosphor technology and operates on both instant-start and programmed rapid-start ballasts, achieving rated lamp life up to 84000 hours under 12-hour programmed rapid-start cycling. Nominal length is 48 inches with a medium bi-pin base. Licensed electricians and lighting maintenance technicians handle installation in standard T8 fluorescent fixtures.

This lamp is suited for a wide range of commercial and institutional applications including education, healthcare, industrial, office, and retail environments. The reduced 28-watt wattage offers measurable energy savings compared to a standard 32-watt T8 lamp — up to 96 percent mean lumens retained over lamp life. Its Octron XP 800 series design supports high-frequency electronic ballasts. The lamp ships in a standard package of 30 units per case, making it practical for large-scale lighting retrofits and maintenance programs.

Key Features

• 28-watt reduced wattage versus standard 32-watt T8 for energy savings
• Up to 96 percent mean lumen maintenance over rated life
• Rated lamp life up to 84000 hours at 12-hour programmed rapid-start cycling
• Compatible with instant-start and programmed rapid-start ballasts
• Rare earth phosphor construction for consistent color rendering
• Lead-free glass construction

Compatibility

Designed for use in standard T8 bi-pin fluorescent fixtures operating on instant-start or programmed rapid-start electronic ballasts. Suitable for education, healthcare, industrial, office, and retail lighting applications.

Installation Notes

Installation should be performed by a qualified electrician in accordance with applicable NEC requirements. De-energize the fixture and allow the existing lamp to cool before handling. Align the medium bi-pin base with the lamp holder keying and rotate to lock. Verify ballast compatibility with 28-watt T8 instant-start or programmed rapid-start specifications before installing.

Technical Specifications

• Wattage: 28 W
• Initial Lumens: 2600 lm at 77 degrees F
• Color Temperature: 3500 K
• Color Rendering Index (CRI): 85
• Shape: T8
• Style: Octron XP 800
• Base Type: Medium Bi-Pin
• Nominal Length: 48 inches
• Rated Life (3 Hr Instant Start): 45000 hours
• Rated Life (12 Hr Instant Start): 75000 hours
• Rated Life (3 Hr Programmed Rapid Start): 80000 hours
• Rated Life (12 Hr Programmed Rapid Start): 84000 hours
• Diameter: 1.1 inches
• Overall Length: 47.78 inches
• Standard Package Quantity: 30 per case
• Package Weight: 12.81 pounds
• Package Length: 49.06 inches
• Country of Origin: Multiple

Standard Information

• Brand: OSRAM
• Manufacturer Part Number: FO28/835XP/XL/SS/ECO3