In the age of the LED light bulb, consumers have an unfathomable range of lighting options. This has, perversely, made the ...

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

A traditional light bulb isn't bright or energy-efficient ... we've found the best LED lights for long-term use, offering warm white, cool white and even multiple colors. Read more: Best Smart ...