Includes both Whitelite and Redlite Race. Whitelite Race Compact and powerful front light provides ample light for commuting. Lamp 2 Super Bright White LED’s Battery CR2032 x2 included Burn Time: approx 70 hrs / 140 hrs Simple rubber strap mounting system. Blinking or constant functions 7x3.8x3.6cm  35.4g Redlite Race Compact and powerful tail light provides excellent visibility in any situation. Mounts to post or seatstay. Lamp: 2 Super Bright Red LED’s Battery: CR2032 x2 included Burn Time: approx 70 hrs / 100 hrs Blinking or constant functions. 7x3.6x3.8cm  37.6g