Replacement Fluorescent Bulb CF18/COIL/41K - 18W, Cool White, Spiral

This 18-watt spiral CFL is a direct replacement for the CF18/COIL/41K bulb. Featuring a E26/E27 Medium Screw base, it's designed for compatible fixtures in residential, commercial, and task lighting applications.

Operating at 18 watts with a 4100K cool white color temperature, this lamp delivers 1100 lumens of cool white illumination. With a CRI of 85, colors appear natural and accurate.

Key Features & Benefits

• Cool White Light: 4100K color temperature provides bright, neutral illumination.
• Strong Light Output: 1100 lumens provides effective illumination for task areas.
• Good Color Rendering: CRI of 85 ensures colors appear natural and accurate.
• E26/E27 Medium Screw Base: E26/E27 Medium Screw connection for compatible fixtures.
• Energy Efficient: 18-watt design provides good output at moderate energy consumption.

Product Specifications

• MPN: CF18/COIL/41K
• Wattage: 18 Watts
• Color Temperature: 4100K (Cool White)
• Lumens: 1100
• CRI: 85
• Base Type: E26/E27 Medium Screw
• Bulb Shape: Spiral
• Condition: Brand New

Common Applications

This spiral CFL is commonly found in:

• Table & Floor Lamps
• Ceiling Fixtures
• Enclosed Fixtures
• Residential 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.