The averaged measured color rendering of ten bulb samples. Those closer to 100 ... The Cree Lighting 6 in TW Series 65W Equivalent Dimmable Retrofit LED Downlight is part of the Lightbulbs test ...

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.

Bad lighting sets the wrong vibe, but these smart bulbs let you switch colors, dim the lights, and set the mood, all for less ...

The TRADFRI LED E14 806 lumen bulb provides both dimmable white and coloured lighting, and has a 25,000 day life expectancy. In the UK, it's priced at £11, and an E27 version is also available ...