In our lab tests, Lightbulbs models like the A19/OM/800/LED are rated on multiple criteria, such as those listed below. Claimed life: Claimed life is how many years the manufacturer says the bulb ...

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.

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 ...