Product Overview

Sylvania 25314 F24T12/D/HO – 35W T12 High Output (800mA) Rapid Start Fluorescent Lamp | 6500K | 1,400 Lumens | R17d Recessed Double Contact
1,400 lumens at 6500K Daylight with CRI 76 – a 35W T12 High Output (800mA) Rapid Start fluorescent lamp designed for high output (800 mA) fixtures.
| Wattage / Type 35W / T12 T12 High Output | Color Temp 6500K Daylight | Initial Lumens 1,400 lm | Rated Life 9,000 hr Rated Average | Base Type R17d Recessed Double Contact Confirm Socket |
Quick Specs
- Brand: Sylvania
- Product Code / Model: 25314 / F24T12/D/HO
- Lamp Type: Fluorescent – T12 High Output (800mA) Rapid Start
- Starting Method: Rapid Start - High Output (800 mA)
- Wattage: 35W
- Base Type: R17d Recessed Double Contact
- Color Temperature: 6500K Daylight
- CRI: 76
- Initial Lumens: 1,400 lm (approx., after 100 hours of operation)
- Mean Lumens: 1,135 lm (measured at 40% of rated life)
- Rated Average Life: 9,000 hr at 3 hours per start
- Nominal Length: 24 in
- Maximum Overall Length (MOL): 21.91 in
- Bulb Diameter: 1.5 in (T12)
Product Overview
The Sylvania 25314 F24T12/D/HO is a 35W T12 High Output (800mA) Rapid Start fluorescent lamp delivering 1,400 initial lumens at 6500K Daylight. 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, 35W wattage, and 6500K color temperature against your existing lamp or fixture label.
Why Choose This Product
- 1,400 initial lumens: Catalog rating after 100 hours of operation, with 1,135 mean lumens at 40% of rated life.
- 6500K Daylight: Helps match the existing light color across a facility.
- R17d Recessed Double Contact base: Designed for the correct T12 socket style; confirm before replacement.
- 9,000 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
| Brand | Sylvania |
| Product Code / Model | 25314 / F24T12/D/HO |
| Lamp Type | Fluorescent – T12 High Output (800mA) Rapid Start |
| Starting Method | Rapid Start - High Output (800 mA) |
| Wattage | 35W |
| Base | R17d Recessed Double Contact |
| Color Temperature | 6500K Daylight |
| CRI | 76 |
| Initial Lumens | 1,400 lm |
| Mean Lumens | 1,135 lm |
| Rated Average Life (3 hr/start) | 9,000 hr |
Dimensions
| Nominal Length | 24 in |
| Maximum Overall Length (MOL) | 21.91 in |
| Bulb Diameter | 1.5 in (T12) |
Applications
- Maintenance and retrofit replacement in compatible high output (800 mA) fixtures
- Commercial, industrial, and institutional facilities and utility spaces
- Replacement for existing F24T12/D/HO 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 F24T12/D/HO or an approved equivalent.
- Fixture socket matches R17d Recessed Double Contact.
- Wattage is 35W and the ballast is compatible.
- Color temperature is 6500K Daylight.
- Physical size is 24 in nominal length (21.91 in MOL) x 1.5 in diameter.
Ordering Information
- Brand: Sylvania
- Product Code / Model: 25314 / F24T12/D/HO
- Description: 35W T12 High Output (800mA) Rapid Start fluorescent lamp, 6500K Daylight, 1,400 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 F24T12/D/HO 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.
For wholesale pricing, bulk availability, or help confirming the correct replacement lamp, contact ADL Supply at 1-800-235-3489.