

💡 Light smarter, live brighter — join the energy-saving revolution!
The B4U Energy Saving Light Bulbs are 11W CFL bulbs that deliver the brightness of a 60W incandescent, providing 660 lumens of warm white (2700K) light instantly. Featuring a BC/B22 bayonet cap, these bulbs are rated A for energy efficiency and offer a long lifespan of up to 12,000 hours, helping you cut electricity costs by over 90% while enjoying cozy, reliable lighting.
| ASIN | B09MVVK717 |
| Average Life | 12000 Hours |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 555 in Lighting ( See Top 100 in Lighting ) 299 in LED Bulbs |
| Brand | B4U |
| Certification | Energy Rating A |
| Colour | B22 Warm White |
| Colour Temperature | 2700 Kelvin |
| Customer Reviews | 4.2 4.2 out of 5 stars (508) |
| Date First Available | 2 Dec. 2021 |
| Guaranteed software updates until | unknown |
| Incandescent Equivalent | 60 Watts |
| Item Weight | 220 g |
| Item model number | FUK44AU3B2211W27P3 |
| Luminous Flux | 660 Lumen |
| Manufacturer | Brightfour |
| Material | Glass |
| Number of Items | 3 |
| Part Number | FUK44AU3B2211W27P3 |
| Power and Plug Description | electricity (AC) |
| Product Dimensions | 4.8 x 4.8 x 13.5 cm; 220 g |
| Shape | Cylinder |
| Specific Uses | General lighting |
| Type of Bulb | CFL |
| Wattage | 11 Watts |
N**N
Light bulbs that will hopefully work when I use them
Light bulbs, what else can I say. They do the job.
M**V
Okay product
Does the job as expected
N**G
ALL GREAT
ALL GREAT
P**N
Light fittings
All fine
D**E
Poor product
Just had these delivered. Unpacked 1 and plug it in, a little glow and then dead! Didn’t open the remaining 5 I bought. Returning immediately. Will by Phillips now.
K**R
Happy
Happy with the product.
S**T
Replacement bulb
Not as bright as my old one but works great
M**E
Very bright
Very bright lights, good value
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