Product Overview

Sylvania 25154 F48T12/D35/HO – 60W T12 High Output Fluorescent Lamp | 3500K | 4,250 Lumens | R17d Recessed Double Contact
4,250 lumens at 3500K Designer 3500K with CRI 70 – a 60W T12 High Output fluorescent lamp designed for commercial and industrial lighting fixtures.
| Wattage / Type 60W / T12 T12 High Output | Color Temp 3500K Designer 3500K | Initial Lumens 4,250 lm | Rated Life 12,000 hr Rated Average | Base Type R17d Recessed Double Contact Confirm Socket |
Quick Specs
- Brand: Sylvania
- Product Code / Model: 25154 / F48T12/D35/HO
- Lamp Type: Fluorescent – T12 High Output
- Starting Method: Rapid Start
- Wattage: 60W
- Base Type: R17d Recessed Double Contact
- Color Temperature: 3500K Designer 3500K
- CRI: 70
- Initial Lumens: 4,250 lm
- Mean Lumens: 3,825 lm
- Rated Average Life: 12,000 hr
- Maximum Overall Length (MOL): 46 in
- Bulb Diameter: 1.5 in
Product Overview
The Sylvania 25154 F48T12/D35/HO is a 60W T12 High Output fluorescent lamp delivering 4,250 initial lumens at 3500K Designer 3500K. It is built for commercial and industrial F48T12 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 offices, warehouses, retail stores, schools, garages, production areas, and utility spaces. Before ordering, confirm the R17d Recessed Double Contact base, 60W wattage, and 3500K color temperature against your existing lamp or fixture label.
Why Choose This Product
- 4,250 initial lumens: Provides dependable output for commercial T12 fixture maintenance.
- 3500K Designer 3500K: 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: Supports routine maintenance replacement planning.
- Sylvania quality: Suitable for professional lighting applications and facility maintenance.
Technical Specifications
| Brand | Sylvania |
| Product Code / Model | 25154 / F48T12/D35/HO |
| Lamp Type | Fluorescent – T12 High Output |
| Starting Method | Rapid Start |
| Wattage | 60W |
| Base | R17d Recessed Double Contact |
| Color Temperature | 3500K Designer 3500K |
| CRI | 70 |
| Initial Lumens | 4,250 lm |
| Mean Lumens | 3,825 lm |
| Rated Average Life | 12,000 hr |
Dimensions
| Maximum Overall Length (MOL) | 46 in |
| Bulb Diameter | 1.5 in |
Applications
- Commercial fixture maintenance and retrofit replacement
- Warehouses, loading docks, production areas, and utility rooms
- Retail stores, schools, offices, corridors, and service spaces
- Replacement for compatible F48T12 fluorescent fixtures
Compatibility & Replacement
Fixture type: Designed for HO/VHO fixtures with R17d recessed double contact sockets.
Ballast: Requires a compatible high-output rapid-start ballast. Always confirm the existing ballast label before ordering.
Before ordering, confirm:
- Existing lamp model matches F48T12/D35/HO or an approved equivalent.
- Fixture socket matches R17d Recessed Double Contact.
- Wattage is 60W and the ballast is compatible.
- Color temperature is 3500K Designer 3500K.
- Physical size is 46 in MOL x 1.5 in diameter.
Ordering Information
- Brand: Sylvania
- Product Code / Model: 25154 / F48T12/D35/HO
- Description: 60W T12 High Output fluorescent lamp, 3500K Designer 3500K, 4,250 lumens, R17d Recessed Double Contact base
Safety & Handling Notes
- Disconnect power before installing or servicing.
- Use only in approved fixtures designed for compatible F48T12 fluorescent lamps.
- Fluorescent lamps contain mercury and should be recycled or disposed of according to local regulations.
- Follow the fixture manufacturer's instructions and local electrical codes for installation.