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. FEATURES• Lumen Output: 250• 7 Modes with Run Times: 5:00 – 45:00hrs • Charge Time: 3:00hrs • Weight: 116g • Battery: Li-Po• Low Battery Indicator• Micro USB Rechargeable• 250 lumen Daylight Visible tail light with Laser Lanes• Water / Dust Resistant IP64 Rated FITS A RANGE OF SEAT POST DIAMETERSFits post diameter sizes ranging from 15.8mm - 31.6mm. 27.2mm is the most common seat post size. RUN TIMES*Flash 1 - *6:30hFlash 2 - *5:00hHigh Steady - *8:00hLow Steady - *45:00h*No Lasers Slow Flash Lasers - *14:00hFast Flash Lasers - *14:00hSteady On Lasers - *7:00h*Lasers Only
