B&M TL IXBACK Senso Flash

This taillight has a 25 hour battery life in solid and up to 200 hours in flashing. Easy installation and removal. Battery powered LED rear light with three settings, solid, flashing, and "senso". While in Senso, the light will turn on automatically at dusk. Standing light of up to 4 minutes at stop. 360 degrees of visibility. Made in Germany.