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💡 Light up your workspace with brilliance and longevity—don’t get left in the dark!
The KosunRefill F552D/830 is a 55W fluorescent replacement bulb designed for GE 2D fixtures, delivering 4000 lumens of soft white light at 3000K color temperature. With a robust 10,000-hour lifespan and energy-efficient performance, it’s the smart choice for professionals seeking reliable, bright, and long-lasting illumination.
| ASIN | B0C6GJZV6J |
| Accepted voltage frequency | 100 to 240 Volts and 50 Hertz to 60 Hertz |
| Average Life | 10000 Hours |
| Batteries Required? | No |
| Best Sellers Rank | #77,861 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #508 in Fluorescent Tubes |
| Brand | KosunRefill |
| Brightness | 4000 Lumen |
| Bulb Base | Prong |
| Bulb Shape Size | T6 |
| Color | Warme White |
| Color Rendering Index | 82 |
| Color Temperature | 3000 Kelvin |
| Control Method | App |
| Customer Reviews | 3.9 3.9 out of 5 stars (78) |
| Date First Available | May 27, 2023 |
| Efficiency | 72.73 lumens/watt |
| Finish types | Soft White |
| Incandescent Equivalent Wattage | 60 Watts |
| Included Components | 2D 55W(F552D/830)Replacement Bulb 1 Pack |
| Indoor/Outdoor Usage | Indoor, Outdoor |
| Item Package Quantity | 1 |
| Item Weight | 6.4 ounces |
| Item model number | F552D/830 |
| Light Color | Soft White |
| Light Output Maximum | 4000 Lumens |
| Light Source Type | Fluorescent |
| Light Source Wattage | 55 Watts |
| Light Type | Fluorescent |
| Manufacturer | KosunRefill |
| Material | Glass |
| Maximum Compatible Wattage | 55 Watts |
| Model Name | F552D/830 |
| Number of Items | 1 |
| Part Number | F55/2D/830/4P |
| Power Consumption | 55 Watts |
| Power Source | Electrical |
| Product Dimensions | 8"W x 8"H |
| Shape | Tubular(T) |
| Special Feature | Long Lasting |
| Special Features | Long Lasting |
| Style | Classic |
| Unit Count | 1.0 Count |
| Wattage | 55 Watts |
| White Brightness | 4000 Lumens |
C**A
A great replacement bulb that fit perfectly.
This was a replacement for a bulb that went out. It works well, it’s very bright and now I can see better in my den area. It fit perfectly and was very easy to install.
F**S
My bulb
It works
K**N
Wasn't working
Didn't work when I received it. I returned this item.
W**K
Good replacement
This worked perfect.
A**R
Works
I thrifted a lamp that asked 38 w 2d which they do not make anymore. I couldn’t find that exact bulb so I purchased this one. And it seems to work. It is bring and fluorescent white. But so far so good
L**A
As described
As described.
W**.
Replacement tube is inconsistent.
The tube has failed to light a couple of times. After being off for a few minutes, it has worked again. The jury is still out on this product.
C**T
Works on my floor lamp
My floor lamp came with a double circular bulb with the same 4 pin base. The diameter was about 9 inches. This 8x8 square fits fine due to the rounded corners and is plenty bright and nice warm daylight color. Only con is relatively expensive but it should last several years and cheaper than even the cheapest new floor lamp and less waste to boot. Will probably buy a couple more before this one goes out of production. The circular ones are no longer being made.