Replacement for Thermo Fisher Scientific NC9983994 - 55W, Cool White, Linear T12

Replacing the Thermo Fisher Scientific NC9983994, this 55-watt 48" T12 lamp provides reliable linear illumination. With its 1.5-inch diameter, the T12 profile fits legacy fixtures still common in many buildings. Equipped with an R17D recessed double contact base.

With 3400 lumens, brightness is robust - well-suited for offices, retail, and general commercial use. The 4100K cool white color temperature produces light that feels crisp and focused - promoting alertness and concentration. The 62 CRI provides functional color rendering for general use.

Key Features & Benefits

• Cool 4100K Color: Bright, productive illumination.
• 3400 Lumen Output: Reliable brightness for the rated wattage.
• 62 CRI: Functional color rendering for general use.
• Instant-On Operation: Full brightness immediately upon starting.
• R17D Recessed Double Contact Base: Direct fit for compatible fixtures.
• Brand New: Factory-fresh lamp with full rated life ahead.

Product Specifications

• MPN: NC9983994
• Wattage: 55 Watts
• Color Temperature: 4100K (Cool White)
• Lumens: 3400
• CRI: 62
• Base: R17D
• Shape: T12
• Condition: Brand New

Common Applications

This linear tube is commonly found in:

• Office Lighting
• Retail Stores
• Workshops & Garages
• Industrial Facilities

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.