Complete Bike LED Kit - 5-LED Front + 6-LED Rear. Got these for my son't bike from Santa. Can't risk them riding around in the dark, especially with these long nights! Have dealt with Deal Extreme several times, they ship from overseas very fast and best of all - FREE! May not be of the very best quality, but they are only $5.93 (about 3.00 UKP) and will work well, as have all the other items I have had from Deal Extreme. There are others to choose from if you don't fancy these.
First deal, so I hope it pleases.