Sylvania 21696 FBO31/841/XP/ECO

Sylvania 21696 FBO31/841/XP/ECO – 31W T8 OCTRON 800 XP CURVALUME U-Shaped Fluorescent Lamp | 4100K | 2,775 Lumens | G13 Medium Bi-Pin

2,775 lumens at 4100K with CRI 85 – a 31W T8 OCTRON 800 XP CURVALUME U-Shaped fluorescent lamp with 1-5/8 in leg spacing.

Quick Specs

• Brand: Sylvania
• Product Code / Model: 21696 / FBO31/841/XP/ECO
• Lamp Type: Fluorescent – OCTRON 800 XP CURVALUME U-Shaped
• Starting Method: Instant Start or Programmed Rapid Start (T8 ballast)
• Wattage: 31W
• Base Type: G13 Medium Bi-Pin
• Color Temperature: 4100K
• CRI: 85
• Initial Lumens: 2,775 lm (approx., after 100 hours of operation)
• Mean Lumens: 2,610 lm (measured at 40% of rated life)
• Rated Average Life – Instant Start (IS), 3 hr/start: 18,000 hr
• Rated Average Life – Instant Start (IS), 12 hr/start: 26,000 hr
• Rated Average Life – Programmed Rapid Start (PRS), 3 hr/start: 24,000 hr
• Rated Average Life – Programmed Rapid Start (PRS), 12 hr/start: 30,000 hr
• Leg Spacing: 1-5/8 in
• Nominal Length: 22.5 in (base face to outside of glass bend)
• Maximum Overall Length (MOL): 22.6 in
• Bulb Diameter: 1 in (T8)

Product Overview

The Sylvania 21696 FBO31/841/XP/ECO is a 31W OCTRON 800 XP CURVALUME U-Shaped fluorescent lamp delivering 2,775 initial lumens at 4100K with a CRI of 85. It is built for U-shaped fixtures with 1-5/8-inch leg spacing where lamp length, base type, leg spacing, ballast type, wattage, and color temperature must match the existing system.

This lamp is best suited for maintenance replacement in commercial, industrial, and institutional spaces. Before ordering, confirm the G13 Medium Bi-Pin base, 1-5/8-inch leg spacing, 31W wattage, and 4100K color temperature against your existing lamp or fixture label.

Why Choose This Product

• 2,775 initial lumens: Catalog rating after 100 hours of operation, with 2,610 mean lumens at 40% of rated life.
• 4100K, CRI 85: Helps match the existing light color across a facility.
• 1-5/8-inch leg spacing, G13 Medium Bi-Pin base: U-shaped lamp for the correct fixture socket spacing; confirm before replacement.
• Up to 30,000 hr rated average life: Rated lives are listed for instant start and programmed rapid start operation at 3 and 12 hours per start.
• Sylvania OCTRON quality: Suitable for professional lighting applications and facility maintenance.

Technical Specifications

Dimensions

Applications

• Maintenance and retrofit replacement in compatible U-shaped T8 fixtures with 1-5/8-inch leg spacing
• Commercial, industrial, and institutional facilities and utility spaces
• Replacement for existing FBO31/841/XP/ECO lamps – confirm the lamp code on your current lamp

Compatibility & Replacement

Fixture type: Designed for U-shaped T8 fixtures with 1-5/8-inch leg spacing using a G13 Medium Bi-Pin base.

Ballast: Use a ballast designed to operate T8 lamps (instant start, rapid start, or programmed rapid start electronic, or 265 mA magnetic rapid start). Always confirm the existing ballast label before ordering.

Starting temperature: Minimum starting temperature is a function of the ballast; consult the ballast manufacturer.

Sylvania catalog notes for this lamp:

• OCTRON lamps should be operated only with magnetic rapid start ballasts designed to operate 265 mA T8 lamps, or with high frequency (electronic) ballasts that are instant start, rapid start, or programmed rapid start and specifically designed to operate T8 lamps. They may be operated on instant start ballasts with ballast factors from 0.71 to 1.20 at the nominal ballast input voltage. In instant start mode, the two wires or contacts of each socket should be connected to each other and then to the ballast lead wire using National Electric Code techniques.
• Approximate length of OCTRON CURVALUME lamps is measured from the base face to the outside of the glass bend.

Before ordering, confirm:

• Existing lamp model matches FBO31/841/XP/ECO or an approved equivalent.
• Fixture socket matches G13 Medium Bi-Pin and the leg spacing is 1-5/8 inches.
• Wattage is 31W and the ballast is compatible.
• Color temperature is 4100K.
• Physical size is 22.5 in nominal length (22.6 in MOL) x 1 in diameter.

Ordering Information

• Brand: Sylvania
• Product Code / Model: 21696 / FBO31/841/XP/ECO
• Description: 31W T8 U-shaped fluorescent lamp, 4100K, 2,775 lumens, 1-5/8-inch leg spacing, G13 Medium Bi-Pin base
• Specifications: Taken from the Sylvania linear fluorescent lamp catalog; specifications are subject to change without notice.

Safety & Handling Notes

• Disconnect power before installing or servicing.
• Use only in approved fixtures designed for compatible FBO31/841/XP/ECO lamps.
• Fluorescent lamps contain mercury and should be recycled or disposed of according to local regulations.
• ECOLOGIC (ECO) lamp: designed to pass the federal TCLP criteria for classification as non-hazardous waste in most states. Disposal regulations vary – check local and state regulations.
• Follow the fixture manufacturer's instructions and local electrical codes for installation.

For wholesale pricing, bulk availability, or help confirming the correct replacement lamp, contact ADL Supply at 1-800-235-3489.