45 lumens per watt is now the bar. 45 lumens per watt is now the bar ... When you think of a incandescent light bulb, you probably imagine this: a simple droplet of water crafted from opaque ...

Today you'll find a remarkable light bulb burning bright at a fire station in Livermore, California. It hasn't been turned off since 1901, shining around the clock (save for a few brief ...

Spending bill would bar federal funds to enforce phaseout of inefficient light bulbs It would also loosen limits on U.S. financing of coal-fired power plants abroad Bill%2C expected to pass this ...

A bare bulb, no elaborate lampshade or anything. Humble as it may look, though, this light bulb is very famous indeed. It was fitted in a fire station in 1901, created by the Shelby Electric Company.