SKU: CLF13T52141
13W 21in T5 Cool White G5 Base Non-Dimmable Linear Fluorescent Light Tube
13W 21in T5 Cool White G5 Base Non-Dimmable Linear Fluorescent Light Tube
QUANTITY:
1-Pack
Benefits
- 21in linear tube ensures consistent light distribution
- 13W T5 shape is ideal for replacing old fluorescent tubes
- 800 Lumens of brightness leave no corner unlit
- View more product details
Better Light, Less Power
LEDs (Light Emitting Diodes) are dramatically more energy-efficient than old-school incandescent bulbs. They use a fraction of the power to produce the same—or even better—brightness.
Here’s how wattage stacks up:
| Brightness (Lumens) |
LED Wattage |
Incandescent Wattage |
|---|---|---|
| 450 lm | ~5–8W | 40W |
| 800 lm | ~8–12W | 60W |
| 1100 lm | ~10–15W | 75W |
| 1600 lm | ~14–20W | 100W |
As you can see, LEDs use up to 80% less energy to deliver the same brightness. That’s not just good for your power bill—it’s better for the planet.
Energy Use
Wattage in LED lights refers to the amount of electrical power the light uses, but unlike traditional incandescent bulbs, wattage is not a direct indicator of brightness. LEDs are far more energy-efficient, meaning they use significantly fewer watts to produce the same amount of light. For example, a 10-watt LED bulb can produce the same brightness as a 60-watt incandescent bulb. This efficiency not only reduces electricity bills but also lowers heat output and extends bulb lifespan. When choosing LEDs, it's better to focus on lumens (a measure of brightness) rather than just watts, as this gives a more accurate idea of how much light you'll get.
Brightness
In the past, we chose bulbs based on wattage: a 60W incandescent bulb, for example, was a standard go-to for general lighting. But wattage doesn’t tell you how bright the bulb is—just how much energy it uses. That’s where lumens come in.
Lumens vs Watts: What's the Difference?
· Lumens measure brightness —how much light a bulb emits.
· Watts measure energy consumption —how much power a bulb uses.
Color Redering Index
Color Rendering Index (CRI) is a measurement of how accurately a light source displays the colors of objects compared to how they would appear under natural sunlight.
A high CRI of 90+ indicates that a light source accurately renders colors, making them appear as close to their natural appearance under daylight as possible.
Temperature
In the past, bulbs were chosen mainly by wattage. Today, CCT—Correlated Color Temperature provides a clear way to specify light.
Color Temperature (CCT): The Standard
· Measured in Kelvins (K): Defines the hue of light.
· 2700K–3000K: Warm white, like incandescent lamps, common in homes.
· 3500K–4100K: Neutral white, typical in offices and retail.
· 5000K–6500K: Daylight white, close to noon sunlight, used in workshops and color-critical areas.
Choosing the right CCT ensures consistent, purpose-driven lighting.
Highlights
Brightness
800lm
Energy Use
13W
Color Temperature
4100K
Color Rendering Index
80+
Product Details
Upgrade your lighting game with Cree Lighting’s 21in Fluorescent Linear Light Tube, a perfect replacement for T5 fluorescent bulbs in almost any commercial or business environment. 4100K Cool White light casts crisp, refreshing illumination to keep you sharp and productive. This 800 Lumen non-dimmable tube uses just 13W of electricity, with relatively cool running performance for its entire 7,000-hour lifespan. Its G5 bi-pin base makes for easy installation and upgrades. Whether it’s in the garage, storage unit, warehouse, or office, enjoy flicker-free lighting built to last.
Benefits
- 21in linear tube ensures consistent light distribution
- 13W T5 shape is ideal for replacing old fluorescent tubes
- 800 Lumens of brightness leave no corner unlit
- Create a crisp, refreshing environment with 4100K Cool White CCT
- With a 7,000-hour lifespan, this tube light lets you forget about replacements for years
