The 49n Ultra Doppler USB Rechargeable tail light provides high visibility with super bright LED's that mount in seconds thanks to it's highly versatile IPX3 waterproof rated silicone body. The Ultra Doppler is USB rechargeable saving money while reducing your footprint.Ultra Doppler Tail Light Specifications
3 super bright LED's producing 7 Lumen's
4-Modes
3 Strobe patterns – 12 Hour burn time
Steady on – 9 Hour burn time
Cable free integrated USB 2.0 charging
180° Side visibility
IPX3 Waterproof rating
Quick release, multi-mount silicone body
Red low battery indicator
Green fully charged battery indicator
2 Hr charging time
Fits all bar and seatpost diameters
Black body, red lens
40 grams