GoodBulb F21T5/830 21W Fluorescent Light Bulb: Legacy Warm White Performance
34-inch T5 Fluorescent Light Bulb with a miniature bi-pin G5 base. Producing 2,100 lumens at 3000 Kelvin Warm White, this slim and efficient lamp delivers a soft, inviting glow ideal for offices, retail, residential settings, and decorative fixtures. With a 36,000-hour rated life, it’s designed for longevity and consistent performance in both commercial and everyday environments.

Why 3000K Warm White?
The 3000K spectrum creates a cozy and comfortable atmosphere without sacrificing clarity—perfect for blending ambiance with functionality.

✔ Offices & Conference Rooms – Adds warmth without dimming focus.
✔ Retail & Hospitality Spaces – Creates a relaxed environment for customers.
✔ Residential Use – Ideal for kitchens, hallways, and living areas that need softer light.

Slim Form. Strong Output.

✔ 2,100 Lumen Brightness – Powerful output for compact fixtures.
✔ 36,000-Hour Rated Life – Reduces maintenance and lowers replacement frequency.
✔ Narrow T5 Tube – Sleek design fits modern, low-profile fixtures.
✔ Miniature Bi-Pin G5 Base – Standard fit for 34-inch T5 lighting systems.

Fluorescents Set the Standard—LED Sets the Future
F21T5 tubes were once the go-to for efficient linear lighting. Now, LEDs offer even more: longer life, better light, and lower energy use.

Why Upgrade to LED?

✔ Up to 86% Energy Savings – Cut energy bills with high-efficiency LED retrofits.
✔ Instant-On, Flicker-Free – Reliable, consistent light with no buzzing.
✔ Longer Lifespan – LEDs last up to 10 times longer than fluorescents.
✔ Mercury-Free – Safer and easier to dispose of.
✔ Ballast-Free Options – Eliminate common points of failure for worry-free performance.

LED Retrofit Options – Easy, Efficient Upgrades

🔹 Plug & Play LED (Type A) – Works with compatible electronic ballasts.
🔹 Ballast Bypass LED (Type B) – Connects directly to line voltage—no ballast required.
🔹 Hybrid LED (Type A+B) – Installs now with a ballast or later without one.

Proper Recycling Matters – Let GoodBulb Help
Fluorescent tubes contain mercury and must be recycled responsibly. We make it simple:

✅ Prepaid Recycling Boxes – Fill, seal, and send to certified recycling facilities.
✅ Compliant & Convenient – Meets EPA and local disposal regulations.
✅ Certificate of Recycling – Official documentation of responsible handling.

Ready to Upgrade? Let's Light Smarter
The F21T5/830 helped set the lighting standard—now it's time to step into the future.

Explore GoodBulb’s LED retrofit solutions today or contact our lighting experts for the perfect replacement. Better light, lower costs, no compromises.