Selling a Kryptonite Evolution Series 4 U-lock. Comes with lock and three keys; one of the keys has a light on it, but doesn't have a battery. This was used for several years across Seattle, parked downtown and I never had an issue.
From product details:
Disc cylinder includes an anti-float feature to keep the discs from moving and readjusting when in transit
Hardened double deadbolt design gives additional protection against twist attacks
Hardened MAX-Performance, 14mm steel shackle resists bolt cutters and leverage attacks
Hardened oval crossbar design is stronger than a typical round tube
Includes three stainless steel keys - two standard "I" keys and one LED lighted key
Secure disc-style cylinder resist picking and drilling
Security Rating: 8 out of 10
Transit Flex Frame Bracket system fits on the adjustable spline and allows for multiple, off-set fitments to better align the lock for transportation