Meilan Smart Bike Tail LED Flashing Light X6 USB Rechargeable with Shock and Daylight Sensing Quick Release 50 Lumens #1 All For Safety: Meilan X6 owns 16 LEDs of 50lm that is dazzling if look it in the eye with 7 alarm modes--Get everyone's attention from blocks away. #2 Amazon's First Hands Free Tail Light:X6 is the real smart tail light, it is powered by Meilan patented automatic sensing system to control the light switch, no matter it is day/night or pulling up/riding--You enjoy your riding, X6 take the rest. #3 Way To Be Cool: Meilan X6 has a very magnificent appearance due to matte process--Got your fallows eye, not only drivers' #4 Can't Be Stronger: IPX6, 7 modes, 16 LEDs, 36 flashing hours, 50lm, 5000h service life--"I am strong enough to back you up." by Meilan X6 #5 Lifetime Guarantee: No-hassle money back for non-artificial damage.