FEMTO USB DRIVE REAR Color:White including a daytime flash mode

including a daytime flash mode (up to 30 lumens) and our Wide-Angle Optics for up to 270-degree of visibility

Highly disruptive Daytime Flash mode

It's ABS Flip Chuck equipped and also comes with a Speed Chuck adapter

while its narrow design interfaces neatly with other handlebar accessories

FEMTO USB DRIVE REAR Color:White including a daytime flash modeThe Femto USB Drive Rear is a compact and lightweight USB rechargeable LED cycling taillight. Its durable co molded construction is minimal and has an IPX7 waterproof rating. A versatile mounting strap quickly mounts to a variety of post sizes. Five output modes offer up to 5 lumens and the custom Wide Angle Optics lens provides up to 270 of visibility. The Femto USB Rear can run for up to 15 hours and is easily rechargeable with the included Micro