This great LED lighting system is more for the money than just about any other light in its class. Nice metal shell with rock solid bar clamp, blink and constant-on modes. Rear light is solid molded plastic, very tough with blink and solid-on modes. A best buy! Blaze features: * Blaze™ 1-watt LED is twice as bright as ½-watt LED * Reinforced alloy midsection * High and low power beam along with “SuperFlash” flashing mode * QuickCam™ bracket mounts, adjusts or removes in seconds w/o tools * High/low/flashing run times of 7/14/20 hours on 2 AA batteries (included) Superflash features: * ½-watt Blaze™ LED plus 2 eXtreme LEDs for visibility up to 1 mile * Unique, eye-catching flash pattern * Up to 100 hours of run time on 2 AAA batteries (included)