This set contains the amazing XP500 & Shield models. Both models have received great reviews and test results in the cycle press.The XP500 provides 500 lumen light output from a compact and durable unit. The XP500 is fully rechargeable from either mains or USB connections. Tool free handlebar bracket make it easy to remove and the package also includes a helmet bracket. You can run the light for 8 hours of a 3 hour charge.The Shield 60 provides up to 60 lumens of light output. The high output rear light is fully rechargeable via USB connection to either Mac or PC.