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.

Right now, you can get this 4-pack of Philips Hue 60W smart LED bulbs for just $37 on Amazon, which is 26 percent off its usual $50. At a little over $9 per bulb, you might be balking — but you ...

So hurry while they are still available. The Philips Hue 60W A19 Smart LED Starter Kit – White and Color Ambiance is currently available for $109.99. This starter kit is designed to introduce ...