Replacement for Satco S2961 - 55W, Warm White, 4-Pin Base

This 55-watt circline tube replaces the Satco S2961. The circular form factor provides even, shadow-free illumination across the fixture face. Features a 2GX13 4-pin base.

With 4000 lumens, brightness is robust - well-suited for offices, retail, and general commercial use. The 3000K warm white color temperature produces light that feels soft and inviting - comfortable without being too yellow. With 82 CRI, colors render naturally - meeting the standard expected in professional environments.

Key Features & Benefits

• Warm 3000K Output: Soft illumination that flatters skin tones.
• Light Output: 4000 lumens ensures adequate illumination.
• Good Color Rendering: 82 CRI meets commercial standards.
• 2Gx13 4-Pin Base: Direct fit for compatible fixtures.
• Brand New: Factory-fresh lamp with full rated life ahead.

Product Specifications

• MPN: S2961
• Wattage: 55 Watts
• Color Temperature: 3000K (Warm White)
• Lumens: 4000
• CRI: 82
• Base: 2GX13
• Shape: T5
• Condition: Brand New

Common Applications

This circular fluorescent is commonly found in:

• Ceiling Fixtures
• Bathroom Vanities
• Kitchen Lighting
• Decorative Fixtures

During the checkout process, you can choose from expedited services such as overnight delivery to standard ground shipping. We aim to ensure your order is delivered promptly and reliably, wherever you are.

All returns must be made within 30 days of purchase with the invoice. (After 30 days, Interlight credit only, Minimum 25% restocking fee, no returns after 60 days, special items order just for you are not returnable.)

At Interlight, your satisfaction is our priority. We offer a 30-day money-back guarantee on eligible products, provided they are returned in resalable condition with the original invoice.