Cycle safely in the dark with this Razor Dresco battery rear light. The rear light has 5 super bright red LED lights. With on/off switch (1 LED) and brake light function (5 LED). Special sensor detects when braking. The flexible silicone strap makes it easy to mount the light on the seat post or rear fork without tools. The lamp is splashproof (IPX4) and has a battery status indicator. Operated on 2 included AAA/LR03 batteries. Visibility in meters: 100. StVZO approved.