Discover the Ledvance LEDTUBE Value Class 11W T9 Circular in Cool White - a hassle-free LED lighting upgrade solution! Consuming just 11W power, this bulb offers efficient illumination suitable for various environments. Enjoy the ease of installation without rewiring and revel in up to 30,000 hours of consistent 4000K Cool White light, ensuring longevity and reliability. These bulbs are a direct replacement for 22W Fluorescent T9 Circular tubes with the color code 840, ensuring a seamless transition to LED technology.Ideal for corridors, stairways, parking garages, domestic spaces, and decorative applications, the Ledvance LEDTUBE T9 Circular bulb enhances ambiance while offering energy savings of 50% compared to traditional T9 fluorescent lamps. Its versatility makes it suitable for general illumination within ambient temperatures ranging from -20C to +45C, meeting a wide range of lighting needs.Upgrade your lighting system today and enjoy the benefits of switching from fluorescent technology to LED. Not only will you experience significant energy savings, but you'll also benefit from uniform illumination, a longer lifespan, and environmentally friendly lighting solutions. Make the switch to Ledvance LEDTUBE T9 Circular bulbs for efficient, long-lasting illumination throughout your space.Please note, these bulbs are compatible with CCG by simply replacing the starter with the LED starter (supplied). However, to run on ECG, they must be rewired to bypass the ballast, ensuring compatibility with different lighting systems.