NiteRider Solas™ 250 Bike Taillight for Optimal VIZ. The NiteRider® Solas™ 250 uses two powerful LEDs to produce an amazing 250 lumens of light output. It features 4 modes (2 flash / 2 steady) and is USB rechargeable. We’ve implemented what we call “Group Ride Mode” for cyclists who want to stay visible but not distract others in the pack.

• Lumen Output: 250
• Package Dimensions: 21.209 H x 4.191 L x 7.289 W (centimeters)
• Package Weight: 0.141 kilograms
• Country of Origin : China
• 4 Modes with Run Times: 4:00 – 40:00hrs
• Charge Time: 4:00hrs
• Weight: 82g