Incandescent vs. LED, watts vs. lumens, A19 base vs. E26, Kelvins — here’s a non-expert attempt to shed some light on the ...

Efficiency is the comparison of the amount of light (lumens) produced by a given amount of electrical energy (watts). The more the lumens per watt the more efficient the bulb.

Unlock to see our ratings and compare products side by side Actual 3K or 12.5K color temperature (kelvin) is the average measured color temperature of 10 bulb samples. Those with 2700 K are ...

Aptly named, the Bright A19 is an A19-style bulb that measures 4.5 by 2.3 by 2.3 inches (HWD) and has a standard E26 screw-in base. It’s a dimmable LED bulb with a brightness range of 30 to ...