NiteRider Sentinel 250 w/Laser Lane Lines LED Rear Bike Light USB Rechargeable IP64 Rated Bicycle Tail Light Bright Daylight Visible Easy to Install Road Mountain City Commuting Cycling Safety Flash

The Sentinel™ keeps a watchful eye over the night projecting highly visible laser lines for your own personal bike lane, enhancing your safety immeasurably, while also giving you protection during the day with Daylight Visible Flash (DVF) technology. Also features an innovative Group Ride Mode where you can be seen without distracting fellow cyclists’ attention from the pavement or dirt. At 116 grams the USB rechargeable Sentinel meets all required FL1 Standards for impact testing and dust/water resistance. The easy on-and-off seat post strap with quick release tab makes the Sentinel convenient when you do need to give it a quick charge.

• HIGHLY VISIBLE DESIGN outputs 250 lumens to the rear and emits 'laser lanes' running parallel to the left/right sides for the rider for ultimate visibility
• CONVENIENT USB RECHARGEABLE rear bike taillight that is easy to charge, eliminating the need to replace batteries on a regular basis. Can be recharged from any powered up computer, device or AC wall adapter. USB charging cable included.
• OPTIMAL VIZ for increased visibility while out on the roadways. Cars and motorcycles are incorporating daytime running lights for increased daylight visibility. And with drivers more distracted than ever, we think cyclists should as well
• POWER MANAGEMENT with the Low Battery Indicator; While powered on, the power button/indicator will light up red indicating a low battery level at or below 20% power remaining.
• 7 varying light modes: Flash 1 - *6:30h, Flash 2 - *5:00h, High Steady - *8:00h, Low Steady - *45:00h (*No Lasers). Slow Flash Lasers - *14:00h, Fast Flash Lasers - *14:00h, Steady On Lasers - *7:00h (*Lasers Only)