21 78 Inch High Output 35W FluorescentRsc Base - 4200K CW, R17D

This 35-watt high-output T12 linear fluorescent tube delivers increased brightness in a 21.91 Inches form factor for high-bay and demanding commercial environments. Built with a R17D recessed double contact base, it fits standard fluorescent fixtures.

Producing 1337 lumens at 4200K daylight, this lamp delivers bright, natural-looking illumination that closely replicates daylight for detail-oriented tasks and workspaces. A CRI of 62 ensures colors appear natural and accurate under its light.

Key Features & Benefits

• Daylight Output: 4200K color temperature simulates natural daylight for clarity and detail.
• Reliable Brightness: 1337 lumens provides ample light for task areas and general illumination.
• Standard Color Rendering: CRI of 62 provides adequate color representation.
• R17D Recessed Double Contact Base: Standard connection for compatible fluorescent fixtures.
• T12 Efficiency: Slim 1.5-inch diameter delivers excellent output per watt.
• High Output: Increased brightness for demanding commercial and industrial environments.

Product Specifications

• Wattage: 35 Watts
• Color Temperature: 4200K (Daylight)
• Lumens: 1337
• CRI: 62
• Length: 21.91 Inches
• Base Type: R17D Recessed Double Contact
• Bulb Shape: T12 Linear
• Finish: White
• Condition: Brand New

Common Applications

This T12 tube is commonly found in:

• Garage & Workshop Lighting
• Warehouse & Storage Areas
• Industrial & Manufacturing Facilities
• Retrofit & Legacy Fixture Maintenance
• Utility & Basement Lighting

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.