AbcoDirect via Amazon offers Prime members its Abco Tech LED Bike Headlight and Taillight Set for $16.97 with free shipping. (Non-Prime members can spend $35 or more to qualify for free shipping; otherwise, shipping adds $5.58.) That's $63 off list price and the lowest total price we could find. The headlight features 1,200 lumens and 6 hours of illumination and detaches to be used as a flashlight.