Factoid - Energy-Efficient Light Bulbs
Submitted by allgreen on Thu, 02/01/2007 - 08:21Did you know?
To power an ordinary 100-watt light bulb for half an hour you'd have to cycle for 40 minutes.
To power the equivalent energy-efficient light-bulb that puts out the same light but is only 21-watts, you'd have to cycle for just 8 minutes.