Replacement for Radium 7W/21/840 - 7W, Cool White, Double Tube, 2-Pin Base

This 7-watt T4 double twin tube CFL replaces the Radium 7W/21/840. Featuring a G23 base, it provides reliable illumination with consistent performance throughout its rated life.

Light output of 400 lumens is suited for compact fixtures and accent lighting. The 4100K cool white color temperature produces light that feels bright and productive - crisp and clean with a slight blue undertone. At 82 CRI, color rendering meets commercial standards with colors appearing natural and accurate.

Key Features & Benefits

• Cool 4100K Color: Bright, productive illumination.
• 400 Lumens: Strong light output for effective coverage.
• 82 CRI: Good color rendering for natural appearance.
• G23 Base: Direct fit for compatible fixtures.

Product Specifications

• MPN: 7W/21/840
• Wattage: 7 Watts
• Color Temperature: 4100K (Cool White)
• Lumens: 400
• CRI: 82
• Base: G23 2-PIN
• Shape: T4
• Condition: Brand New

Common Applications

This double twin tube CFL is commonly found in:

• Recessed Downlights
• Table & Floor Lamps
• Ceiling Fixtures
• Commercial 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.