Product Overview
Philips 34508-2 PL-L 24W/840/4P Compact Fluorescent Lamp — 24W | 12-2/3 in | 1,800 Lumens | 4000K Cool White | 2G11 4-Pin Base
The Philips 34508-2 PL-L 24W/840/4P is a 24W long twin-tube compact fluorescent lamp with a 2G11 4-pin base, producing 4000K Cool White light (1,800 initial lumens) with a color rendering index (CRI) of 82 and a rated average life of 15,000 hours. It is a plug-in lamp, not a screw-in bulb: it needs a fixture with a compatible ballast.
Power 24W Compact Fluorescent | Brightness 1,800 lm Initial lumens | Color Temp 4000K Cool White | CRI 82 | Interface 2G11 4-Pin Base | Rated Life 15,000 h Average rated |
ADL Supply Expert Application & Replacement Guide
Plug-in compact fluorescent lamps like this one are used in recessed downlights, wall sconces, wall washers and other compact commercial fixtures in offices, hallways, healthcare, schools and retail spaces. Because the lamp is not self-ballasted, the fixture must contain a ballast that matches the lamp.
A 4-pin lamp has no built-in starter and is made to run on an electronic ballast, and some electronic ballasts can dim it. A 2-pin lamp of the same wattage has a different base and is not interchangeable, so match the base and pin count to your fixture.
4000K – Cool white - a crisp, clean light common in offices and workplaces.
Detailed Product Specifications
- Brand: Philips Lighting
- Product Name: Philips 34508-2 PL-L 24W/840/4P
- Philips Order Code: 34508-2
- UPC Barcode Number (GTIN-12): 046677345082
- Lamp Type: Compact fluorescent, long twin tube (PL-L)
- Lamp Wattage: 24W
- Color Temperature: 4000K, Cool White
- Color Rendering Index (CRI): 82
- Initial Lumens: 1,800 lm
- Design Lumens (at 40% of life): 1,620 lm
- Rated Average Life: 15,000 hours
- Base: 2G11 (4-pin)
- Maximum Overall Length: 12-2/3 in (321.6 mm)
- Ballast: External electronic ballast required
Ballast & Fixture Compatibility
This 4-pin lamp needs an external electronic ballast rated for this wattage and lamp type; there is no built-in starter. Confirm the ballast is rated for a 24W PL-L lamp.
Equivalent Lamps & Cross-Reference
If you know this lamp by another brand's number, or need a replacement, use the numbers below. Confirm that the wattage, color temperature, and ballast type match your fixture before substituting, since ratings can differ between brands.
- Grainger Item Number: 6V036
- GE Equivalent: F27BXSPX41RS10PK (GE Part Number 16951)
- Sylvania (OSRAM) Equivalent: FT24DL/841 (Part Number 20596)
Before You Order – Verify
- Confirm the base: 2G11 (4-pin). Lamps of the same wattage with a different base or pin count will not fit the socket.
- Confirm the ballast is rated for a 24W lamp of this type (electronic).
- Confirm the fixture has room for the lamp length: 12-2/3 in (321.6 mm).
- Confirm 4000K matches the lamps already installed before partial re-lamping.
Bulk Commercial Lighting Supply & Project Support
ADL Supply delivers commercial-volume fulfillment, tiered contractor pricing, and full pallet project quoting to electrical accounts across the United States.
For wholesale inquiries, volume pricing, or manufacturer spec sheet documentation, call our commercial branch at 1-800-235-3489.
