I just looked up that light. At this store there on sale 29.99.
http://www.campsaver.com/icon-3-watt...lamp-clearance
At 3 watts I think you will be seen but not be able to see much with it in the city. On back roads you be able to see some what. I have a Cree Head/ Bake light that I got for 36.00 and it's 9 watts. From here:
http://www.amazon.com/Bicycle-Light-...EE+XML+XM-L+T6. This will put out way more light then that 3 watt head lamp and you'll be seen as well as be able to see.