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No brainer%3F Cost of CFL v tungsten filament bulb
	100W	18W CFL stick
Cost	£0.50	£1.99
Lamp life (hours )	1000	8000
Total lamp cost (over life of one CFL )	£4.00	£1.99
*Total electricity cost (over life of one CFL)**	£63.20	£11.38
Total costs	£67.20	£13.38
Savings through the use of CFL instead of 100 W GLS%3Cbr /%3E		£53.82
*Based on an electricity price of 7.9 p/kWh %3Cbr /%3E %3Cbr /%3ESource: Energy Saving Trust - www.est.org.uk