KOR Pack of 6 F13T5/CW 4100K Cool White T5 Fluorescent Bulbs – 13W, 21-Inch, Long-Life

Crystal-Clear Lighting with KOR F13T5CW 21-Inch Tubes

The KOR F13T5/CW 6-pack delivers a crisp, 4100K cool white glow designed for kitchens, workspaces, and living areas. Each tube measures 21 inches from pin to pin, operates at 13 watts, and produces about 900 lumens of light. Together, they create bright, evenly lit spaces with a refreshing, eye-friendly tone.

With a long-life design, these tubes are built to shine for up to 15,000 hours, reducing the frequency of bulb changes and maintenance interruptions. This makes them a practical choice for spaces that demand consistent, dependable lighting.

What you get and how it helps

• Six F13T5/CW tubes in a single pack, ready for quick refresh of multiple fixtures.
• 21-inch length (pin-to-pin) that fits a broad range of under-cabinet and task-light setups.
• 13 watts per bulb, delivering 900 lumens per tube for bright, even coverage.
• 4100K cool white color temperature that reads as crystal clear and neutral in many work areas.
• Easy installation with two pins at each end: push into sockets, twist to lock, and switch on.
• Long service life of up to 15,000 hours, reducing replacement frequency in high-use spaces.

Ideal applications

Commonly used in under-cabinet or under-counter lighting in kitchens, this T5 style is also well-suited for RV lighting and other fixtures that benefit from a compact, bright and efficient tube.

• Under-cabinet lighting for food prep and workspace clarity.
• RV and mobile living spaces that require bright, reliable illumination.
• Task lighting in home offices or craft areas where true color and contrast matter.

Installation tips and care

These linear tubes have two pins at each end; insert into side sockets, then twist to lock. Ensure power is off before handling. For longevity, avoid frequent on/off cycling in cold environments.

• Power off before installation.
• Push into sockets, twist to lock.
• Avoid rapid on/off cycling to maximize life.

Packaging and service

Bulbs ship with protective packing materials to safeguard during transit. If anything arrives damaged, contact customer service for a hassle-free resolution.