Sylvania 25122 F48T12/CW/HO/ECO

Sylvania 25122 F48T12/CW/HO/ECO – 60W T12 High Output (800mA) Rapid Start Fluorescent Lamp | 4200K | 4,050 Lumens | R17d Recessed Double Contact

4,050 lumens at 4200K Cool White with CRI 60 – a 60W T12 High Output (800mA) Rapid Start fluorescent lamp designed for high output (800 mA) fixtures.

Quick Specs

• Brand: Sylvania
• Product Code / Model: 25122 / F48T12/CW/HO/ECO
• Lamp Type: Fluorescent – T12 High Output (800mA) Rapid Start
• Starting Method: Rapid Start - High Output (800 mA)
• Wattage: 60W
• Base Type: R17d Recessed Double Contact
• Color Temperature: 4200K Cool White
• CRI: 60
• Initial Lumens: 4,050 lm (approx., after 100 hours of operation)
• Mean Lumens: 3,280 lm (measured at 40% of rated life)
• Rated Average Life: 12,000 hr at 3 hours per start
• Nominal Length: 48 in
• Maximum Overall Length (MOL): 46.00 in
• Bulb Diameter: 1.5 in (T12)

Product Overview

The Sylvania 25122 F48T12/CW/HO/ECO is a 60W T12 High Output (800mA) Rapid Start fluorescent lamp delivering 4,050 initial lumens at 4200K Cool White. It is built for high output (800 mA) fixtures where lamp length, base type, 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 R17d Recessed Double Contact base, 60W wattage, and 4200K color temperature against your existing lamp or fixture label.

Why Choose This Product

• 4,050 initial lumens: Catalog rating after 100 hours of operation, with 3,280 mean lumens at 40% of rated life.
• 4200K Cool White: Helps match the existing light color across a facility.
• R17d Recessed Double Contact base: Designed for the correct T12 socket style; confirm before replacement.
• 12,000 hr rated average life: Rated at 3 hours per start; longer burn cycles increase lamp life.
• Sylvania quality: Suitable for professional lighting applications and facility maintenance.

Technical Specifications

Dimensions

Applications

• Maintenance and retrofit replacement in compatible high output (800 mA) fixtures
• Commercial, industrial, and institutional facilities and utility spaces
• Replacement for existing F48T12/CW/HO/ECO lamps – confirm the lamp code on your current lamp

Compatibility & Replacement

Fixture type: Designed for high output (800 mA) fixtures using an R17d Recessed Double Contact base.

Ballast: Requires a high output (800 mA) rapid start ballast rated for this lamp. Always confirm the existing ballast label before ordering.

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

Before ordering, confirm:

• Existing lamp model matches F48T12/CW/HO/ECO or an approved equivalent.
• Fixture socket matches R17d Recessed Double Contact.
• Wattage is 60W and the ballast is compatible.
• Color temperature is 4200K Cool White.
• Physical size is 48 in nominal length (46.00 in MOL) x 1.5 in diameter.

Ordering Information

• Brand: Sylvania
• Product Code / Model: 25122 / F48T12/CW/HO/ECO
• Description: 60W T12 High Output (800mA) Rapid Start fluorescent lamp, 4200K Cool White, 4,050 lumens, R17d Recessed Double Contact 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 F48T12/CW/HO/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.