Here, we examine the ins and outs of lightbulb types to help you find the perfect bulbs for every room. Most lightbulbs commonly used in homes are one of these three types: Compact Florescent (CFL ...

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 averaged ...

was the first private home to be lit by electric light bulbs. The Cragside type lamp became the first light bulb to be made in large numbers in 1881, when Swan established the world's first light ...