This bulb is Bright White, with a color temp of 3000k (colors over 3500k change towards bluish shades, which can cause problems with sleeping). These bulbs really are great! They fit inside the cramped space of a ceiling fan light globe, and give the brightness of 100w incandescent bulbs (100w x 2 in my fan!). The milky lightshade spreads and reduces the light a bit, but I put shiny aluminum foil above the bulbs to reflect down what light was pointing upwards.
Inorganic to remember, bluer does NOT mean brighter. Lumens are the brightness, not color. For these bulbs, each gives 1200 lumens (a common 60w incandescent bulb gives about 700-800 lumens). Also, the CRI number tells how natural the color looks on objects you see (including skin). These bulbs have a CRI of greater than 80. To be honest, 80 is the minimum for ok appearance (some bulbs don't provide their CRI, often because it's so low). It's CRI 80 great? Nope. But it's at least adequate and doesn't make a person look like a zombie, like some LED bulbs.
LED's save lots of power, in part through little tricks. First, they only show a very limited color of light (the color temperature), unlike the sun. Second, they only light when power is going one way (always on when they receive DC, and on ... 1/2 the time when running true AC). Color matters differently for different people. Good with blue irises tend to perceive a wider blue spectrum, and brown/ black iris folks often perceive more in the green spectrum. Being blue eyed, the blueish tint of 4000k-5000k lights in my eyes throughout the day truly give me terrible headaches! But brown eyes coworkers don't even notice (though everyone can have their sleep schedule interrupted by the bluer light).
Color solution? 2700k is too yellow (even for many blue eyed folks). Best to go with 3000k-3500k, too reduce the yellowish tint, keep it bright, and offend fewer folks (though not making everyone thrilled). Next, check the CRI (80+), then the lumens (more means brighter). This bulb made a happy medium for both blue and brown eyed family, and is bright enough for those with retinas previous damaged by unfiltered florescent 4000k lights in the past (is a thing, Google it).
TMI? Maybe. But choose... knowing why you choose. I'm very happy with these bulbs, and will buy more if/ whenever they fail. I've not found better, and Amazon delivers promptly with Prime. They come individually in little boxes, sealed in a mylar zip lock bag, in an Amazon pouch. Classy!
| Brand | YIIZON |
|---|---|
| Light Type | LED |
| Special Feature | Instant On, Not Dimmable |
| Wattage | 15 watts |
| Bulb Shape Size | C9 1/2 |
| Bulb Base | E12 |
| Specific Uses For Product | General purpose |
| Light Color | Daylight White |
| Voltage | 120 Volts |
| Unit Count | 4 Count |
| Color Temperature | 6000 Kelvin |
| Number of Items | 1 |
| Brightness | 1500 Lumen |
| Shape | Bulb |
| Material | Metal |
| Connectivity Technology | Infrared |
| Indoor/Outdoor Usage | Indoor |
| Controller Type | Push Button |
| Power Source | Corded Electric |
| Color Rendering Index | 80 |
| Power Consumption | 15 Watts |
| Item Package Quantity | 4 |
| Light Source Type | LED |
| Light Source Wattage | 15 Watts |
| Accepted voltage frequency | 100 to 240 Volts and 60 Hertz |
| Control Method | App |
| White Brightness | 1500 Lumens |
| Efficiency | High Efficiency |
| Manufacturer | YIIZON |
| UPC | 639510309213 |
| Item Weight | 10.5 ounces |
| Product Dimensions | 4 x 2.99 x 1 inches |
| Assembled Height | 1 inches |
| Assembled Length | 4 inches |
| Assembled Width | 2.99 inches |
| Style | Modern |
| Color | E12-15w-daylight White-4p |
| Finish types | Natural |
| Special Features | Instant On, Not Dimmable |
| Batteries Required? | No |
| Wattage | 15 Watts |
