Replacement for Osram Sylvania 15W/21-840 - 15W, Cool White, Globe

This 15-watt G30 compact fluorescent replaces the Sylvania 15W/21-840. Featuring an E26 medium base, it provides reliable illumination with consistent performance throughout its rated life.

600 lumens provides modest output ideal for accent and specialty applications. The 4100K cool white color temperature produces light that feels clean and professional - promoting alertness and concentration. The 80 CRI provides good color accuracy suitable for most commercial and residential applications.

Key Features & Benefits

• Cool 4100K Color: Bright, productive illumination.
• 600 Lumen Output: Reliable brightness for the rated wattage.
• Good Color Rendering: 80 CRI meets commercial standards.
• Reduced Heat Output: Runs cooler than incandescent alternatives.
• E26 Medium Base: Direct fit for compatible fixtures.
• Brand New: Factory-fresh lamp with full rated life ahead.

Product Specifications

• MPN: 15W/21-840
• Wattage: 15 Watts
• Color Temperature: 4100K (Cool White)
• Lumens: 600
• CRI: 80
• Base: E26 MEDIUM SCREW, 1-INCH DIAMETER
• Shape: G30
• Condition: Brand New

Common Applications

This compact fluorescent 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.