Product Overview

Sylvania 24830 F48T12/CW – 39W T12 Slimline Instant Start Fluorescent Lamp | 4200K | 2,820 Lumens | Fa8 Single Pin
2,820 lumens at 4200K Cool White with CRI 60 – a 39W T12 Slimline Instant Start fluorescent lamp designed for slimline instant start fixtures.
| Wattage / Type 39W / T12 T12 Slimline | Color Temp 4200K Cool White | Initial Lumens 2,820 lm | Rated Life 9,000 hr Rated Average | Base Type Fa8 Single Pin Confirm Socket |
Quick Specs
- Brand: Sylvania
- Product Code / Model: 24830 / F48T12/CW
- Lamp Type: Fluorescent – T12 Slimline Instant Start
- Starting Method: Instant Start (Slimline)
- Wattage: 39W
- Base Type: Fa8 Single Pin
- Color Temperature: 4200K Cool White
- CRI: 60
- Initial Lumens: 2,820 lm (approx., after 100 hours of operation)
- Mean Lumens: 2,480 lm (measured at 40% of rated life)
- Rated Average Life: 9,000 hr at 3 hours per start
- Nominal Length: 48 in
- Maximum Overall Length (MOL): 46 in
- Bulb Diameter: 1.5 in (T12)
Product Overview
The Sylvania 24830 F48T12/CW is a 39W T12 Slimline Instant Start fluorescent lamp delivering 2,820 initial lumens at 4200K Cool White. It is built for slimline instant start 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 Fa8 Single Pin base, 39W wattage, and 4200K color temperature against your existing lamp or fixture label.
Why Choose This Product
- 2,820 initial lumens: Catalog rating after 100 hours of operation, with 2,480 mean lumens at 40% of rated life.
- 4200K Cool White: Helps match the existing light color across a facility.
- Fa8 Single Pin 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 | 24830 / F48T12/CW |
| Lamp Type | Fluorescent – T12 Slimline Instant Start |
| Starting Method | Instant Start (Slimline) |
| Wattage | 39W |
| Base | Fa8 Single Pin |
| Color Temperature | 4200K Cool White |
| CRI | 60 |
| Initial Lumens | 2,820 lm |
| Mean Lumens | 2,480 lm |
| Rated Average Life (3 hr/start) | 9,000 hr |
Dimensions
| Nominal Length | 48 in |
| Maximum Overall Length (MOL) | 46 in |
| Bulb Diameter | 1.5 in (T12) |
Applications
- Maintenance and retrofit replacement in compatible slimline instant start fixtures
- Commercial, industrial, and institutional facilities and utility spaces
- Replacement for existing F48T12/CW lamps – confirm the lamp code on your current lamp
Compatibility & Replacement
Fixture type: Designed for slimline instant start fixtures using an Fa8 Single Pin base.
Ballast: Requires a instant start (slimline) 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 or an approved equivalent.
- Fixture socket matches Fa8 Single Pin.
- Wattage is 39W and the ballast is compatible.
- Color temperature is 4200K Cool White.
- Physical size is 48 in nominal length (46 in MOL) x 1.5 in diameter.
Ordering Information
- Brand: Sylvania
- Product Code / Model: 24830 / F48T12/CW
- Description: 39W T12 Slimline Instant Start fluorescent lamp, 4200K Cool White, 2,820 lumens, Fa8 Single 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 F48T12/CW 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.