




💡 Illuminate your workspace with style and efficiency!
The SYLVANIA 23521 2-pack features 12-inch diameter T9 circline fluorescent bulbs delivering 1800 lumens of cool white light at 4100K. With 32 watts power consumption and an 80 CRI, these bulbs offer energy-efficient, bright, and natural lighting ideal for professional indoor environments. Each bulb lasts up to 12,000 hours, making this pack a smart, long-term lighting solution.
| Brand | SYLVANIA |
| Light Type | Fluorescent |
| Special Feature | 29.98 |
| Wattage | 32 watts |
| Bulb Shape Size | T |
| Incandescent Equivalent Wattage | 75 Watts |
| Specific Uses For Product | Lamp |
| Light Color | Cool White |
| Unit Count | 2.0 Count |
| Color Temperature | 4100 Kelvin |
| Number of Items | 2 |
| Brightness | 1800 Lumen |
| Shape | Tubular(T) |
| Material | copper |
| Indoor/Outdoor Usage | Indoor |
| Power Source | Corded Electric |
| Color Rendering Index | 80 |
| Power Consumption | 32 Watts |
| Light Source Type | Fluorescent |
| Light Source Wattage | 32 Watts |
| Product Dimensions | 12"W x 12"H |
| Accepted voltage frequency | 100 to 120 Volts and 60 Hertz |
| Control Method | App |
| Average Life | 12000 Hours |
| White Brightness | 1800 Lumens |
| Efficiency | 56.25 lumens/watt |
| Color | White |
| UPC | 046135235214 |
| Part Number | 23521 |
| Item Weight | 1.21 pounds |
| Item model number | 23521 |
| Special Features | 29.98 |
| Batteries Included? | No |
| Batteries Required? | No |
| Wattage | 32 Watts |
L**R
I’m just a guy, standing in front of a light bulb, asking it to light our kitchen
This was my first time replacing our kitchen overhead light since we bought our house, and I didn’t anticipate until I removed the bulb cover that it would require two circular halogen bulbs. However, these fit the balice perfectly and were easy to install, and they’ve have worked for the last couple months or so since I put them in. They seem to be good quality. They are very bright, though, which I personally like for the kitchen space, but if you’re looking for something warmer toned for a living room or something, I’d go for the lower lumen (or whatever it’s called; electricians, please don’t come for me 😂).
V**S
Works Perfect
I received my first order with one of the bulbs broken. I did a return and reorder, it was easy I brought the box to Staples. I received the replacement bulbs, and installed the bulbs. They are amazing, work great, and are bright.
B**E
Excellent Light Bulbs
These replacement bulbs work perfectly in an old fixture we have. I have never replaced a round tube fluorescent, but they are actually very easy to accomplish. The light quality of the new bulb is exactly what I hoped for.
S**.
Kitchen lights
Wish it was a little bit brighter
M**O
Perfect fit!
I know they make jokes about a woman can’t even change a light bulb, but we can!
T**.
Great Price
Better price than Home Depot, well known brand, delivery next day.
P**A
Came quickly
Packaged very well. Arrived quickly. Fit perfectly. Nice and bright. Used in overhead kitchen light.
M**R
Nice color loghting
Returned this double pack because I ordered the single in same wattage, brightness, color. Very pleased because can’t find these in this area. Will probably last another 20 years… or until I buy a new fixture.
Trustpilot
1 week ago
1 week ago