Small but mightyA daytime running light is the easiest and best way to keep riders safe and visible. The Ion 200 RT provides the proven safety of a daytime running light in a compact and powerful USB rechargeable package, and it features a distinctive flash pattern that’s visible from up to 2 km away.Product detailsThe specifically designed focus, flash and range offers ultimate daytime visibility200 lumens via high-power CREE LEDThe integrated light sensor auto-adjusts brightness to your environment200 lm-1.5 hrs, 100LM-3 hrs, 5 lm-14.5 hrs, Night Flash-30 hrs, Day Flash-12 hrsEasily attaches to your handlebars, helmet or bike mountBlendr-compatible for simple, secure attachment to compatible stems and helmetsConnect with compatible ANT+ devices for always-on, battery status and wireless controlIncludes Ion 200 RT, front Quick Connect bracket and a Micro USB charging cableSee me nowResearch shows that riding with a flashing, daylight-visible rear light is the single most effective measure a cyclist can take to increase their likelihood of standing out to drivers.Daytime Running LightsBontrager and Trek daytime running lights are compact and powerful and feature an interruptive flash pattern that’s daytime visible from up to 2 km away.240% more noticeableWhen you use a flashing rear light during the day, studies show you’re up to 240% more noticeable than a rider using no lights at all.Ride for longer with more battery lifeGet a full 12 hours of runtime with all-day flash mode and feel secure in knowing there are 30 minutes of extra battery life built in for when you reach low power mode.Wireless controlConnect with compatible ANT+ devices for always-on, battery status and wireless controlSpecification:Battery: Li-Poly 3.7Vdc 420mAh 1.6WhMilliampere-hour (mAh): 420mAhRechargeable: Micro-USBCharge time: 2 hoursDimensions: 28.9 L x 28.2 W x 37.3 H (mm)Waterproof Rating: IPX7Wireless compatibility: ANT+ / BluetoothBlendr compatible: YesWeight: 40g