Product Overview
Sylvania 20335 CF13DS/835/ECO – 13W DULUX® S 2-Pin CFL | 3500K | 800 Lumens | GX23
The Sylvania 20335 CF13DS/835/ECO is a 13-watt DULUX® S single-twin-tube 2-pin compact fluorescent lamp with a GX23 base. It produces 800 initial lumens at 3500K with a CRI of 82 and carries an average rated life of 10,000 hours. It has a starter in the lamp base for magnetic ballast operation. Manufacturer cross-reference: GE F13BX/SPX35; Philips PL-S 13W/835. Before ordering, verify the exact item number, wattage, base, ballast compatibility, color temperature, and physical dimensions.
Wattage 13W DULUX® S 2-Pin | Initial Lumens 800 690 Mean lm | Color Temp 3500K CRI 82 | Base GX23 2-Pin Plug-In | Rated Life 10,000 hrs At 3 Hours/Start |
Technical Specifications
| Brand | Sylvania / LEDVANCE |
| Item Number | 20335 |
| Ordering Abbreviation | CF13DS/835/ECO |
| NEMA Generic Designation | CFT13W/GX23/835 |
| Lamp Family | DULUX® S 2-Pin Preheat Compact Fluorescent |
| Wattage | 13W |
| Base Type | GX23 2-Pin (starter in lamp base) |
| Bulb | S (T4) |
| Initial Lumens | 800 lm (at 25°C / 77°F) |
| Mean Lumens | 690 lm |
| Color Temperature | 3500K |
| Color Rendering Index | 82 |
| Average Rated Life | 10,000 hours, based on 3 hours per start |
| Maximum Overall Length (MOL) | 7.1 in (180 mm) |
| Package Quantity | 50 |
| Minimum Starting Temperature | 14°F |
Cross Reference
| Sylvania Item Number | 20335 |
| Sylvania Ordering Abbreviation | CF13DS/835/ECO |
| NEMA Generic Designation | CFT13W/GX23/835 |
| GE Equivalent | F13BX/SPX35 |
| Philips Equivalent | PL-S 13W/835 |
Cross-reference codes are taken from the manufacturer catalog. Confirm wattage, base, color temperature and ballast compatibility before substituting a different brand.
Product Overview
DULUX® S preheat 2-pin lamps have an internal starter in the lamp base and are designed for preheat, magnetic ballast operation. This lamp is not a self-ballasted screw-in CFL and is not a 4-pin lamp.
Per the manufacturer catalog, 2-pin compact fluorescent lamps are not suitable for frequently cycled applications or for use with occupancy sensors.
Compatible Applications
- Fixtures and magnetic preheat ballasts designed for 13W GX23 2-pin compact fluorescent lamps
- Commercial and residential recessed, wall-mounted and surface-mounted fixtures designed for this lamp type
Before Ordering – Verify
- Item number: Confirm Sylvania 20335.
- Ordering abbreviation: Confirm CF13DS/835/ECO.
- Base: Verify the lampholder is GX23 (2-pin).
- Wattage: Confirm the fixture ballast is designed for 13W compact fluorescent lamps.
- Ballast: 2-pin lamps have an internal starter and are for magnetic preheat operation. Do not install in a 4-pin socket.
- Color: This version is 3500K, CRI 82.
- Dimensions: Confirm the 7.1 in (180 mm) maximum overall length fits the fixture.
- Cycling and sensors: Not suitable for frequently cycled applications or occupancy sensors.
- Cross reference: GE and Philips codes are manufacturer-catalog equivalents; verify fit and ballast compatibility before substituting.
Safety and Handling Guidelines
- Disconnect electrical power before installing or removing the lamp.
- Use only with a compatible ballast and lampholder.
- Never install a 2-pin lamp in a 4-pin socket, even if the lamp fits.
- Handle the glass tubes carefully and do not install cracked or damaged lamps.
- Allow the lamp and fixture to cool before servicing.
- This lamp contains mercury. Dispose of used lamps according to local, state and federal regulations; see www.lamprecycle.org.
Compliance
- SYLVANIA ECOLOGIC® lamp designed to pass the Federal TCLP criteria for classification as non-hazardous waste in most states; disposal regulations may vary, so check local and state regulations.
- Initial lumens are approximate values after 100 hours of operation.
- Average rated life is based on 3-hour burning cycles under specified conditions with a ballast meeting ANSI specifications.
- Mercury-containing lamp; follow applicable disposal and recycling regulations.
Ordering Information
- Brand: Sylvania / LEDVANCE
- Item Number: 20335
- Ordering Abbreviation: CF13DS/835/ECO
- NEMA Generic Designation: CFT13W/GX23/835
- GE Cross Reference: F13BX/SPX35
- Philips Cross Reference: PL-S 13W/835
- Wattage: 13W
- Base: GX23
- Color Temperature: 3500K
- CRI: 82
- Initial Lumens: 800
- Average Rated Life: 10,000 hours
- Package Quantity: 50
For wholesale pricing, bulk availability, or help confirming the correct replacement lamp, contact ADL Supply at 1-800-235-3489.
