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.

The WiZ 60W A19 Color LED Smart Bulb impressed us ... The Amazon Basics Smart A19 LED Light Bulb was easy to set up and use in the Alexa app, however it performed poorly in our light meter tests.

SAVE $7.50: Amazon has a three-pack of WiZ 60W A19 LED Smart Light Bulbs on sale for just $17.49 (normally $24.99) during its Big Spring Sale. That's a 30% savings and their lowest price to date. I ...