F15T8 (18 inch)

Still using Fluorescent because you are not ready for LED, No Worries...I Got You

What is color temperature or Kelvin temperature? Kelvin temperature is used as a term to explain how warm or how cool the color of light is. The lower kelvin temperature ratings 2000K-3500K have a much warmer tone. 3500K-4200K has more of a cool white tone and anything over 5000K is considered more of natural daylight with more white light. Lighting is the easiest way to change the ambiance in a room and even though our eyes have adjusted to the soft white incandescent glow - that does not mean it's the best light for the application.

• 3000 Kelvin:Soft white light providing warmth with a cozy and inviting glow.
• 3500 Kelvin:Warm white or neutral white. This light is still considered warm and cozy but used where focused activities are required.
• 4100 Kelvin:Cool white light with a mixture of white and yellow light and is best when the location requires more precision to get the job done.
• 5000 Kelvin:Pure white light for premium clarity and is the closest light to our noon day sun.
• 5700 Kelvin:Balanced white light that makes colors brighter and more vivid.
• 6500 Kelvin:Full spectrum light resembling the late afternoon sun. You will see more blues

Each Kelvin temperature is perfect in the right application. I would never use 3500 Kelvin or 4100 Kelvin on a manufacturing floor, the back of house in a hotel, or the kitchen of a restaurant. In these applications, I would recommend 5000 Kelvin because your workers will be more productive and the white light will make everything look cleaner and crisper. A bank or the front of house in a restaurant may prefer the 3000 to 3500 Kelvin to create a more romantic environment. People will see that you care about your space when your space is lit correctly.

You should understand how kelvin, the color of light, can trick the eyes. If you had two rows of light bulbs and each one was a different kelvin, and each bulb produced the same amount of light or lumens. The bulb with the highest Kelvin temperature would look the brightest to the naked eye. For example, a 5000-kelvin bulb will look brighter than a 3000-kelvin bulb even though it produces the exact same amount of lumens or light. Seeing is believing, with light bulbs seeing can be deceiving. To understand how much light is being illuminated look at the Lumens, not the Watts. This will also help when you transition these fluorescents to LED.






What are T8 Fluorescent Bulbs?

T8 fluorescent light bulbs are high output lamps that are the best choice when high levels of light output and color rendering are required. GoodBulb T8s have a longer than average lifespan and are available in an abundance of colors, wattages, and lengths. What makes purchasing a T8 difficult is that the F28T8 fluorescent looks identical to an F5485 HO fluorescent and an F49T8 HO fluorescent. What you may not realize is that these bulbs require different ballasts to operate and are used in different lighting applications. Many customers have purchased and installed the wrong bulbs because they didn't check with a Lumen Master. At GoodBulb, our Lumen Masters will take the time to ask the right questions and make sure you are ordering the right bulbs every time.



What exactly is a fluorescent tube?

Fluorescent tubes are a form of light that has been used in the workplace and similar environments for a very long time. Fluorescent lights are basically airtight tubes full of reactive gases that light up when electricity charges up their atoms, which then become fluorescent. That's part of the reason fluorescent tubes explode when dropped from a 12-foot ladder while trying to install a bulb.




I have been in light bulbs for so many years that I think I am becoming part fluorescent. I swear every time my wife looks in my direction, electricity flows through my body and my atoms charge up. 😍

When I was maybe 12 years old I remember playing basketball at the catholic school parking lot over a weekend with my cousin on the southside of Chicago. Electricians were carrying boxes and boxes of burned-out light bulbs to the dumpster while we were playing. My cousin and I have never run so fast after the workers caught us shooting hoops with fluorescent light bulbs.

Recycle Your Fluorescent Bulbs




Buy A Light, Be A Light.

16% of the world's population still lives without electricity. GoodBulb believes we all have the opportunity to create a positive impact. Join us in choosing to buy quality products that help you create that positive impact in the world. Those who live without electricity often rely on kerosene lanterns. These are inefficient, expensive, and dangerous. In fact, Kerosene is the #1 cause for devastating fires in remote villages, destroying homes and endangering lives. With every light bulb you purchase, GoodBulb provides solar lanterns to families who live without electricity.