"LED light sources with good color characteristics are now commonly rated for 120-150 lumens/watt," McGowan says. That's ten ...
Running a string of 100 LED bulbs (using just three watts) costs less than 1p per hour - in fact, it’s about 1p for every 12 hours. Incandescent lights: A string of 100 incandescent bulbs (using ...
For incandescent bulbs (which use 40 watts of energy) it's £1.76 ... if you're planning to use the lights year after year, as LED lights also last a lot longer (up to 50 times) than incandescent ...